I’ll ask the technician for the following (as recommended by acwizard):
remove air filter, check to see if unit is overfired, check heat rise. This is all relevant to code 33, check wiring harness from inducer fan to variable speed furnace control, check condensate piping , check for obstructions in vent pipes(code 42) Variable furnace control may be defective.
a. I was told that Bryant's material warranty should come with a labor portion i.e., when a certain part fails Bryant pays the contractor a predetermined amount for the replacement labor. Is this correct?
b. I shouldn't have to pay for follow-up service calls because each repair is supposed to be warranted.
Since many of you are professionals, do you think that taking such a stand with my technician is reasonable?
Also, should Bryant take some ownership? Does anybody know who is the Bryant distributor for Chicago area?
The technician replaced the inducer motor and cleared the alarms on 1/28/2011.
During the following 4 days there were
CODE 42 INDUCER FAULT – 30 alarms
CODE 33 LIMIT FAULT – 2 alarms
On 2/1/2011 “SYSTEM MALFUNCTION” message was displayed and CODE 33 LIMIT FAULT was displayed as ACTIVE.
I then turned system off (thermostat), then turned furnace off and (after 2-3 minutes) back on, then turned the system back on (thermostat). As a computer engineer I thought that it might be important that the system is off when I turn the furnace off and back on.
Since 2/2/2011 until 2/6/2011 (4 days) the system has had much fewer alarms even though the weather is cold in Chicago:
CODE 42 INDUCER FAULT – 1 alarm
CODE 33 LIMIT FAULT – NO alarms
CODE 31 MEDIUM PRESSURE SWITCH OPEN – 2 alarms (never seen before!)
“SYSTEM MALFUNCTION” message - NONE
Obviously, 4 days is a very short observation period but the difference is striking.