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I recently changed the thermostat (but used thermostat) and battery, now AC / Heater not working.

anandmongol

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I recently changed the thermostat (but used thermostat) and Panasonic 60Amp battery, now AC / Heater not working (I think battery is highly unlikely the cause). I have 2010 AT THP 156.
So what I troubleshooted so far are;
  1. Run the engine for 20 mins while leaving open the coolant's tank's cap.
  2. Drove 70km with heater full blast on.
  3. Checked every fuse related to heating / AC / thermostat and seems fine.
  4. Engine temperature normalized on 90 deg.
I am getting error F72F air blower fault. I put the heater or AC to highest setting and seems there are no fan noise. And here in Mongolia, when I drove in -30 degree celsius and seems there are little bit of heat blowing to the front window and defrosting it. Other than that no heater nor AC. Please help.

P.S: I don't find any logic that thermostat faulty. Maybe I am wrong.
 
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Pedro

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Maybe the Air con sensor is faulty or there is not enough gas in the system ?
 

Pedro

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Air lock? These systems need a long time to settle if a MD did it they leave them standing overnight to let any vacuum escape naturally mine took around 2 days of topping up before all the air discharged it will come out through the expansion bottle at its own pace
 

neilgsxr69

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Depending on which thermostat housing you’ve used you may need the updated sensor cable I know some of the minis are using this now.
 

anandmongol

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Air lock? These systems need a long time to settle if a MD did it they leave them standing overnight to let any vacuum escape naturally mine took around 2 days of topping up before all the air discharged it will come out through the expansion bottle at its own pace
So basically I left the car with coolant bottle's cap open. Am I doing it right?
 

anandmongol

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Depending on which thermostat housing you’ve used you may need the updated sensor cable I know some of the minis are using this now.
Actually I ordered the wrong (updated) thermostat with 4 pins on one socket, therefore I found the used thermostat which is exactly like original one which we took out. Is it possible to know whether thermostat is working correctly?
 

Pedro

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Yes the Temp Gauge readings & the Air Con working correctly also the heater Fan/Blower giving out controlled hot & cold Air
 

anandmongol

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Yes the Temp Gauge readings & the Air Con working correctly also the heater Fan/Blower giving out controlled hot & cold Air
I didn't get u. I meant to ask how to know whether the thermostat installed is faulty?
 

Pedro

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If its the correct (new) Thermostat its not Faulty you may have other issues with the cooling/heater/Air con
I didn't get u. I meant to ask how to know whether the thermostat installed is faul
Faulty Thermostat means cooling fan continuously coming full on & Temp Gauge showing high Temp/Low & heater & Air con faulty if you cannot understand these faults I can't help you
 

anandmongol

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If its the correct (new) Thermostat its not Faulty you may have other issues with the cooling/heater/Air con

Faulty Thermostat means cooling fan continuously coming full on & Temp Gauge showing high Temp/Low & heater & Air con faulty if you cannot understand these faults I can't help you
Thanks for the help
 
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