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Fan heater stopped working. What could be the problem if its not the switch?

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  • Honda Master
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There are resisters in the plenum that could have broken... or been disconnected. That would cause the blower to not function...

Posted on Sep 28, 2010

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Fan heater works outside but when installed it stops when ignition is switched off & on the fan won't run???


not really sure what your problem is, heater fans usually do stop running when ignition is off

Mar 02, 2015 | Cars & Trucks

Tip

Scania Fault Codes


000 00 No Fault
01 001 less than the rated voltage - heater works
02 002 higher than the rated voltage - heater works
004 03 Short circuit fan (D2I)
005 05 Short-circuiting the wires from alarm (D2I)
009 09 Heater off system TRS (D2I / D9W)
010 0A higher than the nominal voltage (heater stopped)
011 0B voltage less than the nominal (heater stopped)
012 0C overheat - fuel pump is turned off
013 0D temperature sensor recorded a high temperature
014 0E big difference values of t. Dutch. overheating and Dutch. regulation. t (D3W / D9W)
015 0F heater overheated many times - the heater is turned off (D2I / D9W)
017 11 Reusable overheating (t exceeds the second threshold) (D3W)
020 14 Candle / rod defective bulbs
021 15 Short candles / kernel bulbs
022 16 switch faulty lights / lamps kernel (D2W)
023 17 Internal defect relay control R2 candle / bar bulbs
024 18 Short-circuit switch controller candle / bar bulbs
025 19 Short-circuit diagnostic socket
029 1D fan air gap 5 does not operate R3
030 1E air fan does not work in all positions (R3-D3W)
031 1F air fan does not work in all positions (R3-D3W)
032 20 Air fan does not work in all positions (R3-D3W)
033 21 Air fan does not work in all positions (R4-D2I / D9W)
034 22 No contact with solenoid valve system COOL. (D2W / D9W)
035 23 No contact with the relay average performance
036 24 Short-circuit relay average performance
037 25 Do not rotate water pump (D2W / D9W)
038 26 No contact with the fan relay cab heating (D2W / D9W)
039 27 Short cab heating fan relay (D2W / D9W)
040 28 Short electromagnetic. COOLING valve system. (D2W / D9W)
042 2A Short circuit water pump (D9W)
043 2B Short cable from the computer to the heater fuel pump (D9W)
047 2F Short circuit of the fuel pump
048 30 No contact with the fuel pump
050 32 Heater run many times but have not worked (relay R3)
051 33 Flames emerged immediately after pressing the start button heater
052 34 No start (restart purge)
053 35 Stop flame during startup
36 054 Stop flame position max. productivity
055 37 Stop the flame in a position average performance
056 38 Stop the flame in the position of poor performance
057 39 Flame sensor short circuit (photoresist)
058 3A heater is turned off, but the flame in the combustion chamber (D2W)
059 3B Water temperature rising too quickly (D9W)
060 3C No contact with the sensor temperature control
061 3D sensor short circuit temperature control
062 3E No contact with the potentiometer (D2H / D2I)
3F 063 Short potentiometer (D2H / D2I)
064 40 No contact with flame sensor
065 41 Flame sensor short circuit
071 47 No contact with the sensor overheating (D3W / D9W)
072 48 Short-circuit overheating sensor (D3W / D9W)
073 49 Overheating sensor recorded the fastest increase in temperature (D9W)
090 5A Spontaneous error
091 5B high surge (high-voltage wires, CB-radio, etc.)
092 5C Faulty heater control unit - fault ROM
093 5D Faulty heater control unit - faulty RAM
094 5E Faulty heater control unit - fault EEPROM
096 60 Temperature sensor faulty heater ECU (D2I)
097 61 Faulty heater ECU (D2I / D2W / D9W)
255 FF cleared but faulty memory EEPROM

source
http://truckmanual.weebly.com/scania-fault-codes.html

on Dec 20, 2016 | Cars & Trucks

1 Answer

Fan will not go off even when heating is switched off-


most newer cars the fan runs on low all the time engine is on something about cabin pressure

Feb 16, 2015 | Cars & Trucks

1 Answer

My heater stopped working. is there a relay switch that might of went bad? fuse good, fan good also.


Kinda sounds like you have a clogged heater core, if the fan is working but it is blowing cold air that is normally either the coolant is to low or the heater core is clogged.

Dec 19, 2010 | 1987 Ford Bronco II

1 Answer

Heater sandaly stop working , the fan it's correct and the selector switch also work fine. i check the fuse of the heater it's good . please guide me to find this issue thank you


so does the fan turn on or not and there is a blower moter resester you can check that controls the fan speed when you select on the switch its usualy mounted next to the fan.

Dec 07, 2010 | 2002 Daewoo Nubira

2 Answers

1997 TBird-AC fan stopped working


Are you sure it isn't in the switch itself? I believe the fan is under the hook on this car but I don't have my books here to know for sure. If you disconnect the plug to your heater motor and insert a test light inside of the plug that goes to the motor you could see if you have power there with the ignition switch on and heater blower fan switch on. The motor is about $30. to $50. but I definitely would test the motor before buying another one.

Jul 30, 2009 | 1997 Buick Riviera

2 Answers

Heater fan switch only works on high


that is a common for dodge you need to replace the relay for the fan switch i only know this because it happend to me three times on my dodge .hope this could help.

Jan 05, 2009 | 1997 Dodge Ram 3500 Club Cab

2 Answers

Camry 1991 4 cyl.LE.Blower fan in dashboard stopped working


heater fan speed switch located in heater box by passengers feet up in heater box one plug on it cant miss two screws hold it in!!!!

Dec 27, 2008 | 1995 Toyota Camry

1 Answer

Air condition


Check the following fuses:
10 amp GAUGE under the dash, and the 40 amp HEATER under the hood.
If both fuses are good, I suspect that you may either have a bad fan switch or a bad heater fan motor. The switches are rare to fail, I would suspect the heater motor first. Please try this: Turn the key on; turn the fan switch to high. Look under & behind the glovebox, for the bottom of the heater fan motor. Round thing with 3 screws holding it to the heater box. Using a small hammer, or something that you can tap with, tap on the bottom of the heater fan motor. You just may jar the motor enough to make it run. If it comes back on, you may need to replace it at some point in the near future. Worked for me quite a few times. Try that, repost to me what happens. Hope this helps.

Oct 10, 2008 | 2003 Toyota Corolla

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