Here's my situation: I have a airquest 90% gas forced air system for heat and AC. The heating unit is in the basement and the unit stopped working.
I got a trouble code on the unit of 6 flashes +1 flash which the manual says means:
Soft lockout: failed to light pilot during 90 sec. trial for ignition.
But that doesn't really match what I'm seeing.
If I cycle the main power switch so it powers up with a request for heat from the thermostat here's what it does:
Combustion blower kicks in
pilot valve opens (I can hear it) as the ignitor starts to glow
Pilot lights and the ignitor goes out.
Pilot stays lit and then the main valve opens to kick in the main heating tubes.
They actually run for between 15 and 35 seconds but then , flame shuts off. The system sounds like it's trying to restart, cycling what I assume is the pilot valve. The ignitor will glow a few times (I think 3 times for 30 seconds each with a 30 second rest in between). Then it goes into fault mode flashing 6 times then 1 as it goes through shutting down the combustion blower.
This cycle will repeat every 5 minutes.
I think it's the 'smart valve' going but I want to confirm this. I can see that the ignitor works and that the pilot is working as well as the flame detector by it doing all of the early stuff.
I can't figure out why it's cutting out before the main blower kicks in (or maybe just as it is trying to kick in.)
Can anyone give me a set of tests to do in order to determine if it's the SV before I lay out $350 on one to get it overnighted to me?
It's a Honeywell sv9541m valve, single stage, If it's Discontinued what replaces this valve?
Thank you in advance for any help.
I got a trouble code on the unit of 6 flashes +1 flash which the manual says means:
Soft lockout: failed to light pilot during 90 sec. trial for ignition.
But that doesn't really match what I'm seeing.
If I cycle the main power switch so it powers up with a request for heat from the thermostat here's what it does:
Combustion blower kicks in
pilot valve opens (I can hear it) as the ignitor starts to glow
Pilot lights and the ignitor goes out.
Pilot stays lit and then the main valve opens to kick in the main heating tubes.
They actually run for between 15 and 35 seconds but then , flame shuts off. The system sounds like it's trying to restart, cycling what I assume is the pilot valve. The ignitor will glow a few times (I think 3 times for 30 seconds each with a 30 second rest in between). Then it goes into fault mode flashing 6 times then 1 as it goes through shutting down the combustion blower.
This cycle will repeat every 5 minutes.
I think it's the 'smart valve' going but I want to confirm this. I can see that the ignitor works and that the pilot is working as well as the flame detector by it doing all of the early stuff.
I can't figure out why it's cutting out before the main blower kicks in (or maybe just as it is trying to kick in.)
Can anyone give me a set of tests to do in order to determine if it's the SV before I lay out $350 on one to get it overnighted to me?
It's a Honeywell sv9541m valve, single stage, If it's Discontinued what replaces this valve?
Thank you in advance for any help.