Recent content by swamprat69

The difference is the voltage at the motor harness/ board connection pins unplugged ( no load ) or plugged in to the board (under load during ignition sequence).

Blower is not starting = AO error !!! You have not reported voltage to blower motor when connected to the circuit board and motor is powered from the board. No sense in checking for blockages unless the blower motor is running and pressure switch is not closing. Heater should be cleaned and...

During the ignition sequence the gas valve is powered from the "VAL terminal on the fenwal. Remove the gas valve wire from the gas valve to the "VAL" terminal on the fenwal. Check the voltage from the "VAL" terminal to the "GND" terminal on the fenwal during the ignition sequence. You should see...

In what order did you replace the ignition control and the gas valve?

I think that this may be the manual for your heater https://images.inyopools.com/cloud/documents/jandy-legacy-owners-manual-electronic-ignition.pdf. If so then this would be your fenwal ignition control Parts4heating.com: Zodiac R0491300 Ignition Control, Model All, LRZE. There is no...

Just saw the videos. The whole burner flame should look like the flame does at the far end of the burner (defined two tone blue flame). Not sure from videos exactly what the main portion of the burner flame looks like.

The yellow at the pilot is probably due to dirt rerstricting the pilot orifice and a new pilot assembly should correct that. For the heater to run properly it is imperative that there should be no restriction of the flow through the heat exchanger. You can remove the burner tray and put a work...

Flame rollout is indicative of a blockage to the flow of combustion byproducts. What condition were the burners in when you cleaned them? Was there significant debris on top of the burners and in the burner slots? It looks like you have been producing soot on the right side by the pilot...

It looks as if you have multiple areas of concern ( bottom right and midlevel front ). Aphoto of the entire front of the exposed heater would be helpful.

A lot of things seem to be "off" in what you are showing. The 3 pressure switches seem to have different WC setpoints ???? Which one was the correct original ?? Original Blower motor FDXLBWR1930 has 1 black wire and 1 white wire, but the one that you are showing has 1 white wire and a (blue+red)...

Before opening up the combustion chamber to check for any blockages I would follow the AO troubleshooting guide in the heater manual on page 58 and report all of the readings that you get. As to the age of the heater, you should be able to get that from tag on the heater with model and serrial...

Sorry to having been silent for a while but my brother has been visiting and "forced ?" me to play poker constantly for more than a week! Something seems "off" about troubleshooting so far and you have not given actual measurements that you took. I would suggest following troubleshooting chart...

Not sure about total length of the straight runs from the picture. depending on the length of the straight runs and the flexibility of the piping it might be possible to use unions on both of the outside straight runs to connect or possibly compression couplings in both of any of the straight...

This should be the manual for your heater https://ca.hayward.com/media/akeneo_connector/asset_files/U/H/UHS_Service_Installation_011717_RevT_9878.pdf Signature for your equipment and photos of the heater outside and inside (all components from various angles) would be very helpful...

A higher flow rate would definitely increase the heat transfer coefficient, but the increase would not be proportional. The increase in the heat transfer coefficient would be minimal ( mid to low single digit percentage rise at most) and would entail a higher cost for running the pump at a...