Have HVAC Questions? Ask an HVAC Expert for Answers
Is JR1 clipped and removed?
The JR1 in place is 10 sec...and clipped and gone (or defective) is 3 seconds
So JR1 is in place and 3 second rectification is all you have?
What base are you using and amplifier, purge card?
Is everything new ?
We are using the same amplifier and purge card, so they are not new. The unit was running on Wednesday when we shutdown to make repairs. I don't think I have replacement purge cards or amplifier.
Have you run a cycle in Test mode yet?
See page 12 here.....run/test, if equipped is on top left
given you have you changed control, I am betting purge card. Unfortunately these parts are real pricey.
But simply, if the old control and new control both fault at 4 sec instead of 10...the common denominator is purge card. If amplifier were bad it will still go 10 seconds then fault.
very much so. Electrical issues is the number one enemy of the card...even if ground is/was bad.