JANDY Hi E2 TROUBLESHOOTING
Contents
1. 120 VAC COM mA v 10A V V Waterpik Technologies Laars amp Jandy Products 2M 200K 20K 2K 200 200m 2m 2 20 200 1000 200 750 ON OFF PNP NPN A Transformer Yellow Wire Fireman s Switch block ACV above 30 V COM mA v 10A V V Waterpik Technologies Laars amp Jandy Products 2M 200K 20K 2K 200 200m 2m 2 20 200 1000 200 750 PNP NPN A Test Hot Surface Ignitor at Ambient Temperature range 40 to 75 Ohms Set meter to test resistance2. STEP 1 24 Vac at Transformer NO 1 Check Incoming Power Supply 2 Check Transformer Wiring 3 Replace Transformer 24 Vac at Red Wire of Terminal Block Yes NO Fuse is blown Look for short or overload of controls Do not jumper or bypass Fuse Protects Transformer 24 Vac at White Wire of Terminal Block NO Yes Check Firemans Switch remote s and wire connections 24 Vac at White Wire of Pressure Switch Yes NO 1 Check each limit individually 2 Check if damage to disc heads exchanger 3 Perform Temperature Rise Test 24 Vac at Black Wire of Pressure Switch Yes NO Is Pump on Perform Back Pressure Test If 2PSI or more replace switch If less Check pump filter heat exchanger for water flow restrictions Yes STEP 2 STEP 3 STEP 4 STEP 5 Go To step 7 24 Volts at TH of Ignition Control NO Yes STEP 7 STEP 8 24 Vac at Brown wire of Gas Valve NO Does Heater Fire Verify wires and commons Is Gas On Replace Gas Valve STEP 9 1 Check for vent blockage or dirty filter 2 Perform air flow tests 3 Replace Venturi Pressure Switch Check Supply Wiring Replace Ign Control NO 1 2 3 4 5 24 Vac at Bk Y Wire of Ign Controller NO Is Temp Board calling for heat Yes 1 Do Thermistor test 2 Is there voltage at Bl Y wire NO Replace Thermistor YES Replace Temp Board Yes 6 7
3. Is Fan On 120 Volts at F2 of Ignition Control NO NO Check Commons Replace Fan 8 Is Ignitor Glowing 9 Check Ignitor and supply wiring Perform Ignitor Resistance test Replace Hot Surface Ignitor NO 10 STEP 10 Yes Yes Yes Check Burner Limit and Vent Limit 10a 10b 4a amp 4b Yes IGN 120 L1 L2 IGN TH VAL GND F1 F2 IND 24V Red Black Yellow Red Black White GAS VALVE BURNER LIMIT VENT LIMIT IGNITION CONTROL FAN OR COMBUSTION BLOWER Yellow White Black Black TEMPERATURE CONTROL HIGH LIMIT 150 F HIGH LIMIT 135 F PRESSURE SWITCH 120 VAC ONLY THERMISTOR White Black White Red Black Yellow VENTURI or DIFFERENTIAL PRESSURE SWITCH HOT SURFACE IGNITOR FIREMAN S SWITCH CONNECTION Brown Black Purple White Brown 1 TRANSFORMER 2 3 4a 4b 4 5 6b 6 7 8 10 10a 10b 6a 9 BURNER White at 20 K or above 77 F COM mA v 10A V V Waterpik Technologies Laars amp Jandy Products 2M 200K 20K 2K 200 200m 2m 2 20 200 1000 200 750 ON OFF PNP NPN A
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