Jandy Pool Heater
- Thread starter SaskMan
- Start date
- May 22, 2023
- 25
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
I’m honestly at a loss. Completely. I know everything works except the 24 volts being sent to the gas valve. This weekend I’m going to check those wires again. I should also get 24 volts coming right off the ignition control panel telling the gas valve to open as well correct? It I do a voltage test on the ignition control module right where the brown wire comes off and goes to the gas valve that should also read 24 volts should it not as part of the ignition sequence?
- May 22, 2023
- 25
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
This is the guide I’ve used. I get
To nunber 13 and that’s the issue.
swamprat69
Well-known member
So at step 13 you get all NO answers = "replace ignition control" and since you read no resitance at the gas valve terminals you will also have to replace the gas valve. If you do so, I would suggest that you install the Fenwal without the gas valve wires attached (Brown {13} & yellow at the gas valve) and then check for 24V from Brown (13) to Yellow (1) of the transformer ( be sure not to let the brown wire touch any ground). You should have 24V at the correct point in the ignition sequence. If so, check the resistance at the gas valve terminals without any wires attached to the gas valve terminals. You should get somewhere in the mid 30s ohms. Check the resistance of each gas valve terminal to the yellow (1) transformer wire (still with no wires attached to the gas valve). You should et 0 ohms. If so, attach the wires to the gas valve and run heater and it should fire if there are no other problems.
Endro32
Well-known member
If the relay contacts on the gas valve solenoid read 0 ohms, then supplying a voltage across them would short the control circuit in the Fenwal and thus could have damaged it.