Universal H-Series Heater - Troubleshooting Guide
Contents
1. en pp F o m Applies Only To Indoor Installations Step 7 Ensure that flue is not blocked or restricted See indoor vent sizing requirements in Installation Manual Hemove wires from Vent Pressure Switch and measure continuity between terminals While heater is running measure continuity across the Vent Pressure Switch Step 8 o a o ur m 8 un ma 2 S 3f BE e ce en e C4 o 0 29 If open replace Vent Pressure Switch HAYWARD Page 40 Service Light On IF Code IF Ignition Failure Ensure main gas shutoff outside the heater is open and that the Gas Valve inside the heater is in the ON position Step 2 Inspect Flame sensor and Gas Valve wiring and ensure wire harness is securely fastened to the terminals Imi i 4 f rT wo Step 3 Ensure Gas Static Load and Manifold pressures are correct See Page 8 If OK proceed to Step 5 Otherwise proceed to Step 4 OHAYWARD Page 41 Service Light On IF Code Step 4 Measure for 22 28 VAC across Gas Valve during trial for ignition If 22 28 VAC is present and Gas Valve does not open with manometer connected to valve replace Gas Valve See Page 8 for reference If 22 28 VAC is not present replace the ICB For models manufactured prior to 4 14 2009 Step 5 Verify which flame sensor is installed If 3 flame sensor installed replace t2. Otherwise go to Step 4 CO HAYWARD Page 30 service Light On BD Code a a 80 ie E Step 3 Disconnect plug from E10 connector of ICB and measure for 110 125 VAC across pins 1 and 3 of plug on Wire Harness t g L3 S l E f be x C L gt 7 ME gt If 110 125 VAC is present replace the ICB Otherwise replace the Wire Harness Step 4 Disconnect plug from P4 connector of Fuse Board and measure for 110 125 VAC between pins 4 and 6 of plug from Transformer Ld 2 If 110 125 VAC is present replace the Fuse Board Otherwise replace the Transformer CO HAYWARD Page 31 Service Light On EE and CE Codes Communication Error between ICB and display board Error may be CE Code cleared by cycling line power off and on Otherwise inspect Display Interface ribbon cable and ensure plug is securely attached to ICB Back ICB Display P Board If Display Interface ribbon cable and connector plug is OK replace the Display Interface Assembly If code is still present replace the ICB HAYWARD Page 32 Service Light On IO and SB Codes lO Code Igniter Open Inspect Igniter wiring ensure Igniter plug is securely attached to the ICB Verify Igniter ohm resistance 10 9 19 7 Ohms If wiring damaged and or ohms resistance is out of range replace the Igniter SB Code Stuck Button requires the Be
3. UV Ci i H Three Wire lenis eme 4 Two Wire Remote Remote imam e Connection Orange Connection n z Pool and White Orange Pool P Common White 24V and Red Spa C HAYWARD Page 5 Control Hookup Through August 08 EN Control hookup located outside control box Two Wire Hook up Three Wire Hook up Orange Pool and White 24v Orange Pool White 24v and Red Spa HAYWARD Page 6 Control Configuration Two wire Step 1 Press the Mode button to place the heater in Standby Mode Hold the Mode and Down Arrow buttons simultaneously for 3 seconds for Bypass operation bo will be displayed on the screen Step 2 Heater must then be in Spa or Pool Mode for operation The heater will Step 3 fire when instructed by the external control MEL TN UA E n 4 OT Tw 19 5 J M a LA J pos ed E uu 7L AE mni opens Sy iE SERVICE E STANDBY _ i OTST ang T h 1 Ad NEA 1 ts 4 1 mW bs e n P OT C aw MMC ME erir HEAT e B BE o Za COSME ID NM EEEWCO ST OL ES e te qt A Note 104 maximum temperature HAYWARD Page 7 Gas Pressure Testing Measure the inlet Static Pressure valve off and Load Pressure valve on energized Measure the outlet Manifold Pressure valve on energized Step 2 The Static and Load values should Manifold reading should be be within the levels listed on the between 1 8 2 0 w c for Natura
4. are an integral part of the ICB Temp Sensor ohms Q 2 between black and each red should read the same 77 F 10 000 Q HAYWARD Integrated Control Board Wiring internal to the ICB and temp sensor are indicated by a dotted line lo se etacacne senses Isolation transformer creates 4 circuits as shown for troubleshooting 1 amp 4 Mode Switch 1 amp 3 Temp Set Red up 1 amp 2 Temp Set Blue down Top PN wf Page 53 Wiring Connection Diagram Display Circuit Board i Lio BREK Y OR ROY G BK lia ao la HH T 3 H 33144 gui O O l COO 00 m mhm pafe ACO i oogQ y mapen BEZE TT Water m E Temperature Hols Wale Lime Swit Temperalurs ra Sener X fe o ag o Q z e BK Valve Waler i Temes ature Lint Salt 120 VAC Plug II 7 M 242 VAC Flug ANM Bx Wi 120 VAC aK A LiL 4 EO G Powe N TT A L vr l Connections a hi f i ee i Remote SPA q R Trauer catia COM qf Vi gt Connections POOL 4 O 4 6 Let Juncion Box Cortera Module i u i Vates Pressure Bower wc Vacuum o Combustion Blower Ipriice 1 Power NOTE Cerrect 2rs 1 Haalsr s factory wired for 240 V AC To convert ta 20V AC Install 1227AC plug Inte rang connector on tune crear baard 2 For field power connection
5. voltage is incorrect proceed to Page 22 Otherwise proceed to Step 6 CO HAYWARD Page 16 Troubleshooting Heater will not power up Measure for low voltage 22 28 VAC between P5 C pin and bottom of FC3 fuse If Step 7 voltage is not present replace Fuse Board Otherwise measure for low voltage between P5 C pin and top of FC3 fuse If voltage is not present check for blown fuse If fuse is blown proceed to Page 12 if voltage is present proceed to Step 8 H HAYWARD Page 17 Troubleshooting HAYWARD PNM simpel mn If wiring is OK and plugs are securely fastened proceed to Step 9 HAYWARD Page 18 Troubleshooting Heater will not power up z um T x a Pal Se oo E Ww T z o D un m Sp E If voltage is incorrect replace the Wire Harness If voltage is correct proceed to Step 10 H AVWA IDE H Pee Vee Page 19 Troubleshooting Heater will not power up Step 10 Verify that F1 Fuse 3 AMP on ICB is not open by measuring continuity across the Fuse If fuse OK proceed to Step 11 If fuse is blown proceed to page 24 Verify 22 28 VAC is present between COM and AC terminals on ICB board If Step 11 voltage is present and display is blank replace Display Board If voltage is not present replace ICB HAYWARD Page 20 Troubleshooting Open FC1 and or FC2 Fuses Step 1 Verify that 120 VAC Voltage Selector Plug is NOT inst
6. 43 correct Page 8 Inspect Combustion Chamber for Adjust Manifold moisture gas pressure Page 43 Page 9 O HAYWARD Page 51 Flow Chart AO amp AC Code Is the Blower Is the correct Is the Blower Is 110 125 Replace the Vacuum tubing Voltage Selector resistance VAC present Blower and wiring Plug installed within range at Blower Vacuum OK Page 45 Page 45 Page 46 relay Page 46 Switch No No Heplace Install correct Replace the Replace the damaged parts plug Blower ICB Is the Blower relay open Page 44 Replace the Blower Vacuum Switch Replace the ICB HAYWARD Page 52 L LI P2 TI P3 TI P4 N L P6 N E1O N E3R E6 W Bezel Ribbon Cable Continuity Schematic 240v o7 gp plug jl 120v fy a BK plug LL P1I 2 P1 1 J P2 T4 L po T3 P2 T2 FWP FC2 Fuse FC Fuse circuit 1 circuit 3 P3 T3 P3 T4 120v P3 T2 120v Isolation Transformer P4 C 24v P4 24v PA 120v Q 120v E circuit 2 FC3 Fuse FC4 Fuse circuit 4 O P5 C P5 R P6 H a FWP EI3 C O S EI2 R E10 H L S mn e r S 5 p r E3L Igniter gt f b B 3 a Tics P amp 2 5 z F1 3 Amp Fuse O o e FL Ae A 9 6 e D p di E E6 R Blower ad panni in Note Integrated E uaMANENEEMMMENRARNAM A EAERENERKKXKEE RE 4 0c res C on agus cs x RT ERR RN MM 1 The Igniter Blower and Gas Valve Lil ee relays
7. 7 Is 110 125 VAC Is 110 125 VAC present on pins 3 amp 5 present on pins 1 amp 3 Replace the ICB of P6 receptacle of E10 Plug Page 31 Page 30 Replace the Wire Harness Replace the Fuse Board Is 110 125 VAC Replace the present on pins 4 amp 6 Transformer of P4 Plug Page 31 Flow Chart LO Code Is water flow Is the Water Indoor Installations Is the pump Yes above Pressure Yes Only running minimum Switch Is the Vent required closed Page 37 Are the High Limit Switches closed Page 38 Pressure Switch closed Page 39 No No No Adjust Water Pressure Switch if needed refer Is the flue blocked Replace the to the pressure switch or restricted High Limit adjustment section of Switches the installation service manual LO Code Cleared Turn the Backwash or clean the filter circulation pump on Replace the Replace the Water Vent Pressure Pressure Switch Switch C HAYWARD Page 50 Flow Chart IF Code Gas supply Is inlet gas Is the Flame During 4 sec trial for shutoff valves supply pressure sensor plugged ignition is 22 28 VAC and Gas Valve between min in and 5 in present at Gas Valve turned on and max Page 8 length Page 42 and 110 125 VAC at Igniter Page 42 Adjust the gas Plug in or replace Replace the ICB valves pressure the Flame Page 8 Sensor Inspect Orifices Is the Manifold and Burner gas pressure Tubes Page
8. Universal H Series Troubleshooting Guide HAYWARD Table of Contents Important Safety Instructions Page 1 BD Code Pages 30 31 sequence of Operation Pages 2 3 EE and CE Codes Page 32 Electric and Gas Connections Pages 4 5 lO and SB Codes Page 33 Control Hookup Pages 6 7 SF and HS Codes Page 34 Gas Pressure Testing Pages 8 9 HE and PF Codes Page 35 Control Board Connections Page 10 HF Code Page 36 Fuse Board Connections Page 11 LO Code Pages 37 40 Fuses Page 12 IF Code Pages 41 43 Heater will not power up Pages 13 20 AC Code Page 44 Open FC1 and or FC2 Fuse Pages 21 22 AO Code Page 45 46 Open FC3 and or F1 Fuse Pages 23 26 Flow Charts Pages 47 52 Open FC4 Fuse Pages 27 28 Wiring Schematic Page 53 Diagnostic Codes Page 29 Wiring Diagram Page 54 HAYWARD HAYWARD a High Voltage Electrocution Hazard Hazardous voltage can shock burn cause serious injury and or death o reduce the risk of electrocution and or electric shock hazards e Only qualified technicians should attempt repairs Replace damaged wiring immediately e Insure Heater is properly grounded and bonded Page 1 in m UHS Sequence Of Operation Lu C gp The control continually compares the Set Temp to the actual water temp When the water temp is 1 below the set point the sequence starts The control checks for open Blower Vacuum Switch Blower starts pre purge cycl
9. alled with a 240 VAC field power supply If correct plug is installed proceed to Step 2 If incorrect turn the power off and install the 240 VAC plug Then replace FC1 and FC2 Fuses OHAYWARD Page 21 Troubleshooting Open FC1 and or FC2 Fuses E n j Check for faulty Transformer Hemove P4 and P3 plugs Measure Step 2 wiring and ensure the insulation Transformer for resistance of on the wiring is not worn 1 9 2 9 ohms between Black to Brown wires and between Orange to Yellow wires of P3 If resistance is out of range replace the Transformer C HAYWARD Page 22 Troubleshooting Step 1 Check low voltage wiring connections for worn insulation or pinched wiring HAYWARD Page 23 Troubleshooting Open FC3 and or F1 Fuses Step 2 Inspect Gas Valve wiring and ensure insulation is not worn If wiring is OK proceed to Step 3 IL m Jr Mt AF n B H H A rV V a Le P ag e 24 Troubleshooting Open FC3 and or F1 Fuses Measure resistance across Gas Valve terminals greater than 5 ohms and between each terminal to Ground for short there should be no continuity between either terminal to ground Step 3 If a short exists less than 5 ohms replace the Gas Valve Otherwise proceed to Step 4 HAYWARD Page 25 Troubleshooting 00 Step 4 Check for faulty ICB wiring and ensure insulation on wiring is
10. d correct Control Board No Page 23 No N N o o Is 22 28 VAC Ves Replace present on pins Display Harness No Go to Open FCI Fuss Yes Go to Blown FC3 pepe FC1 and or m and or F1 fuse Is all Fuse Board Yes Yes FC2 fuse blown section wiring secure and Is FC1 or FC2 Fuses Open section Page 21 No correct No Is field supply hs ivo Moon x Mii VAC es voltage present Correct wiring iiid oai present on on P1 No pins 1 amp 2 of P4 Install correct plug Is 110 Replace 125 VAC Transformer present at Replace Transformer P4 H HAYWARD Page 47 Is field supply Replace Wire Harness voltage present in junction box Correct field wiring to heater Replace Fuse Board Flow Chart Blown FC1 and or FC2 Fuse Is Transformer wiring Yes Correct repair damaged pinched Is proper voltage selector installed No No Yes Install proper Is Transformer Replace voltage selector resistance out of range Transformer No Flow Chart Blown FC3 and or F1 Fuse Transformer wiring or worn Is Gas Valve wiring damaged pinched or worn wiring Is Control Board wiring Correct repair No damaged pinched or board wiring worn Correct repair Yes Gas Valve Is resistance on Gas Yes Replace Gas Valve less than 5 ohms Valve No Replace ICB O HAYWARD Page 48 Flow Chart BD Code Isthe FC4 Yes podre use Fuse open Section No Page 2
11. e as the igniter heats up 20 Sec The Control checks for a closed Blower Vacuum Switch At proper Igniter temp a 4 second trial begins Gas valve opens and monitors flame sense The blower will turn off for one second The Igniter is de energized at flame sense or at completion of 4 sec trial If the flame is sensed The Blower Vacuum Switch Control Loop Temp oensor amp Flame Sensor are constantly monitored during call for heat When set temp is reached the control ends the call for heat The gas valve is de energized flame is extinguished The blower will operate for a 30 second post purge CO HAYWARD Page 2 UHS Sequence Of Operation a mm m E pe pna ime Failure to Light Retry Sequence Gas Valve de energizes 30 second blower post purge starts over at 2 of heating mode sequence Retries 3 times until lockout IF Code Waits 60 minutes then retries 3 more times Will continue to retry every 60 minutes until demand for heat is stopped Note When making keypad entries of any type there may be a 5 10 sec delay for certain situations CO HAYWARD Page 3 UHS Electrical and Gas Connections LCEITFTE E SILCLE Beginning Sept 08 Gas High Suppl Upply Voltage Low Voltage Bonding Lug LI AW WIAD H HAYWARD Page 4 sam B css L x ME i v i Gy 3 Teh a j ES L JE i iO
12. f the control will go into lockout The blower will continuously run until error condition is corrected When corrected control will run blower for 5 seconds then automatically restart heater after 2 minutes Reset heater cycle line power off and on If the code is still present the Gas Valve is defective and needs to be replaced OO HAYWARD Page 36 service Light On LO Code i LO Code Limit Open Verify pump is running and adequate water is flowing through heater LO Code is normal when the pump is turned off Remove wires from Water Pressure Switch and measure continuity across the Step 3 terminals while pump is running If open replace Pressure Switch Otherwise go to Step 4 HAYWARD Page 37 service Light On LO Code EA Se a gt 2 a Certain applications will require the adjustment of the Pressure Switch refer to section of the installation service manual Water Pressure Switch Test Adjustment Procedures CO HAYWARD Page 38 service Light On LO Code l K If open replace the Temperature Limit Switch s Applies Only To Indoor Installations Step 7 Inspect the Vent Pressure Switch Wiring and Hose connections Ensure Wire Harness is securely fastened and tubing is attached to Blower and Vent Pressure Switch O HAYWARD If OK proceed to Step 8 Page 39 service Light On LO Code
13. l Data Plate example on Page 9 or 6 8 7 0 w c for Propane H HAYWARD Page 8 Gas Pressure Testing Turn clockwise to Remove plug increase pressure If inlet pressures are correct and the Manifold Step 3 Pressure is low or high adjust the Manifold Pressure at the Gas Valve Note Never adjust valve if incoming pressure is not correct OHAYWARD Page 9 Temp Sensor E2 Flame Sensor E4 Remote Control E1 HAYWARD LAM WW PA 1L Em at BEEN SW HOLIIM 1494V0 A AO LANES Be di ru P R44 n 4 R71 nag Had 4 2 tm Blower Inducer E6 3A Fuse F1 Voltage R amp C E12 E13 Gas Valve and Safety Switches E11 High Voltage E10 Page 10 Fuse Circuit Board Connections Power Connection Transformer Low Voltage High Voltage P6 PS for junction boxes Primary P3 after Aug 08 F roo renee eee P1 n n 94 i POOL PRODUCTS PZN 1037243701 p ok rd TRANS IMER PRIMARY LOW VOLT E Terminal block for Transformer field wirin A FC FC2 E connections TB1 es el i js secondary P4 through Aug 08 3a n fi 3a SA Y 3 I TBI a 2992 Configure heater for 240 VAC or 120 VAC by installing correct plug P2 HAYWARD Page 11 HAYWARD POOL PRODUCTS P N 1123043781 FC1 and FC2 fuses TRANSFORMER PRIMARY ye protect the primary input v
14. not worn TUUM XYW VG 47H02 WApZ WI zZ pa u a 1494V8 Av F6059 476200 AYW ARD POOL 61643301 66 6042UER18 MADE IN MEXICO HAYWARTN Enni PANDI If wiring is OK replace the ICB OHAYWARD Page 26 Troubleshooting Open FC4 Fuse If wiring is OK proceed to Step 2 Otherwise replace the defective component s H Ld i i A pul R rm AMAT WAME Page 27 Troubleshooting pen FC4 Fuse u If resistance is out of range replace the Igniter If OK proceed to Step 3 Step 3 Disconnect the Blower Plug from ICB and measure the Blower resistance Resistance should be 8 9 ohms from Black to Red wires and White to Blue wires If resistance is out of range replace the Blower Otherwise proceed to Page 30 HAYWARD Page 28 Diagnostic Codes Below is a list of all Diagnostic Codes for the UHS Heater Troubleshooting Steps for each Code are covered on the following pages Water Pressure Switch Vent Pressure Switch or Temperature Limit Switch Fault Voltage polarity reversed low voltage detected Keypad failure Temperature Sensor thermistor input failure OHAYWARD Page 29 service Light On BD Code 7 Step 2 Disconnect plug from P6 connector of Fuse Board and measure for 110 125 VAC across Pins 3 and 5 of P6 receptacle on Fuse Board w a d T Me 4 4 1 gt If OK proceed to Step 3
15. o 5 flame sensor Part IDXLFLS1930 HAYWARD Page 42 Service Light On IF Code Step 6 Remove and inspect Gas Orifices and Burners for blockage NOTE Check for excessive moisture in combustion chamber Determine possible causes roof run off sprinklers etc OHAYWARD Page 43 service Light On AC Code AC Code Air Switch Closed Blower vacuum switch closed when Step 1 expected open Disconnect wires and tubing from switch measure continuity between terminals on switch if continuity exist replace switch OHAYWARD service Light On AO Code bk 7 A PAYT WAI iD Page 45 service Light On AO Code E i m c e ur zm If resistance is out of range replace the Blower If OK proceed to Step 4 Step 4 Disconnect Blower Plug from ICB and generate a call for heat While in pre purge measure for 110 125 VAC across Pins 1 amp 2 of inducer on ICB 1 zu I 7 i ae ROP ebb L A o g A E dea Yor amp x di S ia i 4 at U M 5 sS 1 i fae a I a D a C M j 47620 6200 pede If 110 125 VAC is not present replace the ICB If 110 125 VAC is present and Blower is running replace the Blower Vacuum Switch CO HAYWARD Page 46 Flow Chart Heater will not power up inn Is 22 28 VAC Go to Open Is 22 08 VAC Yes Is all ICB Yes present on Yes ISF1Fuse ves FC3 and or F1 an
16. oltage These fuses blow due to a shorted Fuse Board shorted Transformer S mp improper or A4 eee FCS 98S cere ORMER SECONDAh failed Blower excessive voltage f 9 e e o eec e 21 Igniter or ICB SiNi FUSE 8OARD The FC4 fuse protects the mi 6 cca transformer 0 D ij T 120VAC 3a 1 IRENI MP secondary output It di e voltage from a The FC3 fuse protects the transformer 24VAC secondary output voltage Situations that will cause this fuse to blow include Short between FC3 to R amp C on the ICB e Any short to ground at the E1 connector external remote terminal on the ICB or 24 VAC circuit HAYWARD Page 12 Troubleshooting Heater will not power up Verify incoming voltage to heater is present 110 125 or 220 245 VAC if voltage is present proceed to Step 2 Otherwise correct incoming line power to heater Page 13 Troubleshooting Heater will not power up O HAYWARD uH Troubleshooting Verify that FC1 and FC2 Fuses are not open Check incoming voltage at bottom of both fuses Fig A and out going voltage at top of both fuses Fig B if no voltage present at top of both fuses remove fuses from the Fuse Holders and measure continuity across each Fuse Fig C If Fuses are open proceed to Page 22 Otherwise reinstall the Fuses and continue to Step 5 O HAYWARD Page 15 Troubleshooting Heater will not power up If either
17. s use 14 AWG ar larger wire rated far at laast 75 C 157 F X For field remote thermastal connecfons use 72 AWG x larger wire l amp f ary of the cffginal afte supplied wih the heater musi be replaced t mutt on replaced wih 19 AWG UL or o POOL Remcts CSA approved wire rated fer 820V and 105 C w E d COM Thermostat R d SPA Conr amp ticns Right Jurcfjan Bex Page 54
18. zel Keypad assembly to be replaced HAYWARD Page 33 Service Light On SF and HS Codes z El ppu Step 1 SF Code Sensor Failure Inspect Temperature Sensor thermistor wire make Sure sensor is plugged into ICB securely Measure resistance between black wire and each red wire the Temperature Step 2 Sensor resistance should be the same 10k ohms at 77 degrees If readings are significantly different from each other replace the temperature sensor Otherwise replace the ICB HS Code High Temperature Sense If water temperature exceeds 105 F the heater will shut down and go into lockout Automatic restart is 2 minutes after water temp drops below 105 F CO HAYWARD Page 34 Service Light On HE and PF Codes Pl ae e Heat Rise Excessive Inlet water temperature exceeds 5 F in a 5 HE Code second period This is interpreted as a superheated water condition If the control detects this condition 3 times it will lock out and will require a power cycle to reset Polarity Failure This code will display if 120V polarity is reversed low PF Code voltage is detected or if the ground path is not sufficient Reset is immediate after error Is corrected HAYWARD Page 35 service Light On HF Code Heat or Flame Sensed Heat sensed when gas valve should be OFF If flame is HF Code sensed with the gas valve of
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