The DIY thread - DIYourself
- Thread starter Red Mosquito
- Start date
qclabrat
Well-Known Member
Anyone work on Lennox HVAC units? Looks like my thermostat is dead and the repair is about $2k, the head units alone are over 1000. Seems a swap to the current tech, a S40, is relatively simple from the current 10F81 icomfort controller. Thinking to buy the S40 and see if I can configure myself
It may. When I was researching a bunch of HVAC units they need proprietary head units to control them due to the PWM motors in the AC compressor, air handling motors, etc.
Turned me off that style of unit, I just want a NEST, Ecobee, etc.
sounds like a reddit university topic!
SmooveP
Well-Known Member
"Very hot" indeed.
ekuhn
Well-Known Member
That warranty work or a simple replacement of the controller?
The company who installed it is coming out this morning. Hopefully just that controller.
iman29
Well-Known Member
That’s pretty scary tho looks like it could have gone on fire pretty easily.
hopefully just defective unit and not something else.
Very small leak in at the shut off for the incoming water dripped into the unit and made it's way to the thermostat and shorted it. Guy were here for about 40 min and done.
qclabrat
Well-Known Member
Yeah, there's some reddit articles already to use Nest, but it's complicated and above my pay grade. Ordered a new thermostat today and going to try and configure myself with their installer app. I have a dual heat pump/furnace setup so it my be harder to figure out. My downstairs thermostat is starting to flicker a bit and is dim. So likely a second repair is coming soon. 4k to change two thermostats seems excessive. Fingers crossed this works as I'm getting masonry work and a new driveway done in the fall.
qclabrat
Well-Known Member
Not worth fixing the old thermostat, if the caps don't die, it's the LEDs or something else. The S40 module is supposed to much better, if anyone has a Lennox system, don't use the s30 with the hub, haven't heard anything good about them
Had a win and a loss today.
Whole home generator threw an error - battery voltage low. Emailed my guy and he said to replace the battery.
3 years old? hmmm
Pulled off the panel and found that the corrosion was enough to compromise the cable.
pulled the clamp, neutralized the area with baking soda and water with a toothbrush. Terminated the cable and hooked it back up.
No more error!
The loss - my w1f3 loves the hot tub. It was throwing a 'heater too hot' error.
Internet university said it could be 1/2/3 - checked all that. No Bueno.
a couple days later it starts tripping the GFI.
do some troubleshooting. if I disconnect the heater, it doesn't throw the breaker.
the element does not have a route to ground (that is what multi meters are for.)
Not sure why it is tripping - but it is a $150 part - so i'll order it up and see what happens.
Be back soon!
Whole home generator threw an error - battery voltage low. Emailed my guy and he said to replace the battery.
3 years old? hmmm
Pulled off the panel and found that the corrosion was enough to compromise the cable.
pulled the clamp, neutralized the area with baking soda and water with a toothbrush. Terminated the cable and hooked it back up.
No more error!
The loss - my w1f3 loves the hot tub. It was throwing a 'heater too hot' error.
Internet university said it could be 1/2/3 - checked all that. No Bueno.
a couple days later it starts tripping the GFI.
do some troubleshooting. if I disconnect the heater, it doesn't throw the breaker.
the element does not have a route to ground (that is what multi meters are for.)
Not sure why it is tripping - but it is a $150 part - so i'll order it up and see what happens.
Be back soon!
Last edited:
ekuhn
Well-Known Member
My Generac did something very similar, but I caught it was it was intermittent. I replaced the entire cable back to the starter other than a splice.
w_b
Well-Known Member
I had the same issue, same symptoms, Hot Spring Vanguard spa. I also replaced the heater. Same issue. Turned out for me it was the 14-yo relay daughterboard, specifically the relay for the heater. Now all good and I have a spare 14-yo heater.
What do people do with their lifetime warranty Craftsman stuff now?
I've got a broken Made in the USA ratchet that back in the day I'd just go into Sears and they'd either repair or swap it.
Is going to Lowes and having them swap it for a Chinese Craftsman ratchet the best option? Kits seem to be available on eBay but I'm not spending $25 on a ratchet repair when I can just buy a newer ratchet.
I've got a broken Made in the USA ratchet that back in the day I'd just go into Sears and they'd either repair or swap it.
Is going to Lowes and having them swap it for a Chinese Craftsman ratchet the best option? Kits seem to be available on eBay but I'm not spending $25 on a ratchet repair when I can just buy a newer ratchet.
Sort of same question but we have a Craftsman power washer that STB after 2 years. I suppose I could call customer support but I will see if anyone has an answer before I do.