spa heater. When turned on led shows 888 for about 4 secs then 128 for about 2 sec then R = 8 for 2 sec and then noting does any body no why it's doing this and wha
Pentair aster temp 250 pool/spa heater. When turned on led shows 888 for about 4 secs then 128 for about 2 sec then R = 8 for 2 sec and then noting does any body no why it's doing this and what needs to be done to get the unit working
Pool & Spa - Pentair - Master Temp Pool Heater 250,000 BTU Natural Gas
Answers & Comments
A bad sensor could be a problem, among other things...
Does the Service Light come on?
The numbers you see at start up are not Fault or Error Codes.
They are simply informational, letting you know the confirmations of the logics and revision of the circuit board. Then if all is 'a go' it should fire. If it doesn't, then the Service Light will come on after a few attempts to ignite.
when the service light does come on, take the top off of the heater (4 each wing nuts in each corner) then look at bottom side of touch pad circuit board, there should be an illuminated lite? What are the Letters next to it? That will be an indicator to the reason it's not firing.
Bad temp sensor