[jackswaton]

Good morning!
I have a Carrier Weathermaker 8000 model # 58wav070-12. It is giving an error code of 33. I have cleaned the filter (it was very dirty). But the error will not go away.

Any thoughts?

Thanks,
Jack

Here is the Error text:
11 NO PREVIOUS CODE - Stored status codes are erased when power (115V or 24V) to control is
Interrupted or 48 hours after each fault is cleared.
12 BLOWER ON AFTER POWER UP (115V or 24V) - Blower runs for 90 seconds, if unit
Is powered up during a call for heat (R-W closed).
13 LIMIT OR FLAME ROLL-OUT SWITCH LOCKOUT - Auto reset after three hours. For flame
Roll-out switch or fuse link, refer to #33.
14 IGNITION LOCKOUT - Control will auto-reset after three hours. Refer to #34.
21 GAS HEATING LOCKOUT - Control will NOT auto reset.
Check for: - Stuck gas valve relay on control or miswire to gas valve circuit.
22 ABNORMAL FLAME-PROVING SIGNAL - Flame is proved while gas valve is
De-energized. Inducer will run until fault is cleared. Check for:
- Stuck-open gas valve or leaky gas valve.
23 PRESSURE SWITCH DID NOT OPEN Check for:
- Obstructed pressure tubing. - Defective pressure switch (stuck closed).
24 SECONDARY VOLTAGE FUSE IS OPEN
Check for: - Short circuit in secondary voltage (24V) wiring.
31 PRESSURE, DRAFT SAFEGUARD, OR AUXILIARY-LIMIT (when used) SWITCH DID
NOT CLOSE OR REOPENED - If open longer than five minutes, inducer shuts off for
15 minutes before retry. Check for:
- Proper vent sizing and condensate pitch. - Inadequate Combustion air supply.
- Vent restriction or high winds. - Low inducer voltage.
- Defective inducer motor or start capacitor. - Disconnected or obstructed pressure tubing.
- Defective pressure switch or connections. If it opens after trial for ignition period, blower will
Come on for 90 second recycle delay.
33 LIMIT OR FLAME ROLL-OUT SWITCH IS OPEN - If open longer than three minutes, code
Changes to #13. Check for:
- Defective blower motor or start capacitor. - Dirty filter or restricted duct system.
- Loose blower wheel. - Defective switch or connections.
- Inadequate Combustion air supply Flame Roll-out Switch or fuse link.
- Open Flame Roll-out switch,or fuse link. Manual reset or replace.
34 IGNITION PROVING FAILURE - Control will try three more times before a lockout #14
Occurs. If flame signal lost after trial for ignition period, blower will come on for
90 second recycle delay. Check for:
- Oxide buildup on flame sensor (clean with fine sandpaper).
- Proper flame sense microamps (.5 microamps D.C. minimum).
- Gas valve turned off. - Manual shut-off valve. - Low inlet gas pressure.
- Green wire MUST be connected to furnace sheet metal.
- Inadequate flame carryover or rough ignition.

[hvac1000]

Well you kind of answered your own question

33 LIMIT OR FLAME ROLL-OUT SWITCH IS OPEN - If open longer than three minutes, code
Changes to #13. Check for:
- Defective blower motor or start capacitor. - Dirty filter or restricted duct system.
- Loose blower wheel. - Defective switch or connections.
- Inadequate Combustion air supply Flame Roll-out Switch or fuse link.
- Open Flame Roll-out switch,or fuse link. Manual reset or replace

Did you check the above items?

[KC13]

If the filter was very dirty, chances are the unit has been cycling via the high-limit for some time, and it may now be stuck in the open position. Try removing it and tapping the disc against a hard surface (like the floor) to see if it will reset. This action may get you through a pinch, but the control should be replaced and the filter given more attention.

[jackswaton]

Guys,
Thanks for responding. One problem I have is that I can't test all of the different scenarios in Error 33. Regarding tapping the High Limit unit, I can't find a picture of that item to knock about!

Any idea what I should be looking for? I have the manual but I don't see where the unit is.

Thanks,
Jack

[jackswaton]

Guys,
Thanks for responding. One problem I have is that I can't test all of the different scenarios in Error 33. Regarding tapping the High Limit unit, I can't find a picture of that item to knock about!

Any idea what I should be looking for? I have the manual but I don't see where the unit is.

Thanks,
Jack

Here is a link to the manual. I have the upflow version:

http://www.docs.hvacpartners.com/idc...it/om58-93.pdf

[KC13]

The main/high limit control is located in the center of the cell panel, usually behind the gas control, with 2 red wires attached and mounted with 2 zinc-plated (yellowish) screws. Look for a number on the front that starts with "HH12ZB---". If you have a continuity tester, turn off power, remove wires, and check control. No continuity indicates a control that is open.

[jackswaton]

Here is a link to the manual. I have the upflow version:

http://www.docs.hvacpartners.com/idc...it/om58-93.pdf

You DA MAN!
I found the unit and unplugged one of the terminals. Once I plugged it back in... whoosh! We're in business.

I've been unemployed for 10 months, my wife went through cancer at the same time, our live-in father-in-law broke his hip and is recovering from pneumonia, etc. etc. You've saved us many critical dollars!

God bless you,
Jack and Family

[KC13]

Good deal, but as I said before, replace the limit as a repeat of this problem is likely if it has been "tortured". They are pretty cheap ($6-$10). And don't neglect your air filter.

[jackswaton]

Good deal, but as I said before, replace the limit as a repeat of this problem is likely if it has been "tortured". They are pretty cheap ($6-$10). And don't neglect your air filter.

I've learned my lesson on the air filter! Do you know where to find said beastie part?

Jack

[KC13]

If there isn't a Carrier, Bryant, or Payne distributor in your area, check furnaceparts.com. You will need the "HH12ZB---" number.

[jackswaton]

If there isn't a Carrier, Bryant, or Payne distributor in your area, check furnaceparts.com. You will need the "HH12ZB---" number.

Thanks and good night.

Jack