Furnace/ac repair and suggestions

[TomC]

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I had my furnace/ac circuit board replaced back in November, due to water damage from what was believed to be by not replacing the air filters frequently enough.

Last week, the same circuit board was water damaged again (this the last few months i have aggressively replaced hte air filters).

"Markham Heating" is the company that is providing me their services, and I asked if the circuit board can be covered under warranty....they can't guarantee it will be covered under warranty, and the only way to tell is if they come in and charge $100 for an hr of labor off the bat. They charged 240 for the circuit board replacement, which seems pretty steep with what the prices im referencing online. And another 80 for "service call"

My friend thinks the evap coils may be responsible for the water damage. In any case, the water damage was not properly diagnosed the first time around. I feel like if I go with these guys, I'm just ognna keep throwing money at circuit boards.

TO have them inspect the board for warranty eligibility, it would be a minimum of 180 (100 for labour and 80 for service call).

Looking for suggestions on good repairmen/services, or other advice. Thanks.

Further details:
- original circuit board is a tempstar N9MP050B12
- replaced circuit board is a honeywell st9120u

 

[Scuba Steve]

Buy one online and find where your ac is leaking and fix it the filter won't cause water leakage

Sent from my Nexus 4 using Tapatalk 4

 

[crankcall]

As per Scuba Steve, it may have originally been caused by not changing filters, but changing them now may not help.

We had this issue in a house we had, filters were not changed regular and the condenser frame (A frame) was clogged and caused water to leak back into the furnace and caused other damage.
Changing the filters now prevents it from re occuring , however to correct the problem meant the condenser had to be removed from the furnace and power washed to get 5yrs of dog/.cat hair. That fixed my problem.

 

[Dober]

It could very likely be a leaky drain pan from damage or the drain line could be clogged and backing up. However that would not explain why you had water damage in November without the ac running.

if you take the door off the upper section, is there any evidence of water leaking around the drain fittings?

 

[Brian P]

TomC - not sure where you live but you might know a few people in the roadracing community. Kristopher Garvie is an HVAC tech and lives in Caledon; Andrew Westbrook is also an HVAC tech and lives in the Kitchener area.

Kris fixed my home A/C last summer - I called him because he lives 5 minutes away from me. From the symptoms, he figured the capacitor had blown ... he was right.

 

[TomC]

TomC - not sure where you live but you might know a few people in the roadracing community. Kristopher Garvie is an HVAC tech and lives in Caledon; Andrew Westbrook is also an HVAC tech and lives in the Kitchener area.

Kris fixed my home A/C last summer - I called him because he lives 5 minutes away from me. From the symptoms, he figured the capacitor had blown ... he was right.

damn, both of them are too far out, would love to have them work on the AC and pick their brains about road racing. I'm in markham

 

[Iceman]

The most likely cause is a/c drainage, you have a blockage in your drain somewhere and it's backing up. Your filter will have nothing to do with it. The a/c would have been leaking slowly all summer, come November, your ignition control module got tired of being wet. The blockage is obviously getting worse, your new module got too wet in one season. It's also a good time too check the evaporator coil for dust/lint for proper airflow as has been said.
Jeremy
Yes the part should be under warranty for 1 year minimum. It is the installers fault. Due diligence says we must repair the source of the problem (water leak), not just replace the defective water damaged module. However they will fight you on this.

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