How many DC does a Laars heater need?

Assuming that the pilot is lit and you have somewhere around 3-6 millivolts (DC) going to the valve from the pilot generator, once the safety circuit closes the valve opens and you’re in business.

Where is the pressure switch on a Laars heater?

If you wanted to simply test the thermostat then you could find the wire that goes from the on/off switch to the black “brick” mounted behind the door (only two wires on the on/off switch, one goes to the pressure switch, you want the other one).

How much does it cost to repair a gas pool heater?

We have a Teledyne Laars Series 2 gas heater on our pool that stopped heating one night. I just had a pool repair man come out to look at it and diagnose the problem. He said that we need a new “temperature control board”. The price quoted was $370 for the part and $170 for labor.

Is it possible to replace a millivolt pool heater?

The temperature control assembly for the millivolt model (no electrical service) is not difficult to replace, but there are a few different parts involved: the control panel up top, the “black box” behind the front panel, and the temp probe. The most difficult to access will be the probe, but that just requires taking off the top of the heater.

If you wanted to simply test the thermostat then you could find the wire that goes from the on/off switch to the black “brick” mounted behind the door (only two wires on the on/off switch, one goes to the pressure switch, you want the other one).

Assuming that the pilot is lit and you have somewhere around 3-6 millivolts (DC) going to the valve from the pilot generator, once the safety circuit closes the valve opens and you’re in business.

The temperature control assembly for the millivolt model (no electrical service) is not difficult to replace, but there are a few different parts involved: the control panel up top, the “black box” behind the front panel, and the temp probe. The most difficult to access will be the probe, but that just requires taking off the top of the heater.

We have a Teledyne Laars Series 2 gas heater on our pool that stopped heating one night. I just had a pool repair man come out to look at it and diagnose the problem. He said that we need a new “temperature control board”. The price quoted was $370 for the part and $170 for labor.