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My sm rm heater in my room doesnt heat up but the fan is OK so how will I fix it ?

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2009 jeep patriot 2.4 heater not blowing hot

Radiator coolant level may be low.

Dec 17, 2016 | 2009 Jeep Patriot

1 Answer

My 2010 Jeep Liberty doesn't blow heat. I let the air out and the heater core is not clogged.

no engine stated, 3.7L or diesel or what?
i cant bet past let the air out.
ok, i get it, you burped all the air out , after draining all coolant
my guess, is the heater worked before, must i guess that?
my guess is this, (wild , lacking full story)
your heater did fail before (touching it) and you then drained the system
that was a wrong move. now you get to get all those air pockets out to land you back to square one, no heater, ok Ill pretend you did that, the book, on jeep cover this, read them>?
  1. guess, 2, blower blows fast on high,say in A/C mode.
  2. I check fuses, and they are ok.
  3. I then check fluid levels and ok, (at RAD)cold. only'
  4. I then get engine hot, it must reach 180F, degrees if not we wnext, the HVAC heat steals engine heat, so...IS NEXT.pg7
  5. now the HVAC chapter tells you to put the HVAC in to full heat mode fan on high, and check the 2 hoses that pass from the engine to fire wall to the heater core, for both same temperature and min. 125f (see chart in SM) ,at 60f outdoors
  6. if this test passes, above, then there is no need drain anything. landing use where, we land on HEATER FAILURE
  7. the failure of air to pass through the core, heater and that is caused by only 2 things (mostly)
  8. The blend damper motor is dead,
  9. or the controls sad damper are wrong.
  10. many jeeps have an HVAC self test, Ill now look up that for you, try I will. chapter 24 in the SM service manual.
page 2 in that chapter covers all tests.
see 2, that is the blend door.
if stick closed, this is the first thing to fix.
i see no HVAC self test, in fact the book shows only the dealer
scan tools above to test it.
I'd still scan the PCM to see if there are errors using any scan tool
that is always wise and always first. on any modern car.
1 is heat core, air must flow there, or there will be no heat.
no heat parked, engine hot, set to max hot, and both recirc and fresh air mode fail, parked . !!!!

Nov 29, 2016 | Jeep Cars & Trucks

1 Answer

Heat stays on with thermostat off

How Your Car's Heater Works (Or Doesn't) ' AC Pro
At A/C Pro, we're focused on helping people stay cool with our do-it-yourself car A/C repair kits. ... dropping, drivers are switching off the A/C and turning on the heater. ... When you turn on your car's heater, the hot coolant flows from the engine to ... Or it could be that the thermostat, which is a valve that regulates the flow of ...

Heat Won't Turn OFF: troubleshoot the room thermostat ...
Here we discuss how to diagnose & fix a thermostat that keeps calling for heating or cooling when it should not. A separate article, HEAT WON'T TURN OFF, ...

Oct 06, 2015 | Cars & Trucks

2 Answers

How many square feet will it heat

Hi there, it's Jack at Dyson.

The Dyson AM05 Hot + Cool heater is suitable for small, medium and large rooms of up to 30 square feet. Dyson Air Multiplier technology draws in and amplifies ambient air to projects the heat further, warming the whole room quickly and evenly. And in the summer, it cools you with uninterrupted high velocity airflow.

I hope this answers your question, but if you'd like further information please visit or give our experts a call on 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU).

Feb 18, 2015 | Dyson Inc Am05 Hot Cool Fan Heater -...

1 Answer


the thermostats work from the room temperature and not outside temp
could be a problem with the thermostats or the setting procedure

Oct 29, 2017 | Samsung Heating & Cooling

2 Answers

Panel heater is getting red hot but it doesn't heat the room at all. Please help

Without a manufacturer or a model it will be difficult to help you. THe only thing I can see is that it has no fan to transfer the heat into the room. Did it have one when you bought it?

Jan 16, 2013 | Heating & Cooling

1 Answer

Fan doesnt work on heat cool ok

Often the fan will cycle on and off on the heat mode. A cold air prevention mode is often built into modern Ac units whereby the indoor fan wont turn on until the internal system pressure is up to a certain point and heat is available to pump into the room. If the system cant come up to pressure or temperature then possibly the system is low on gas. Place your hand on the large pipe leaving the outdoor unit, it should be HOT when the system is on heating mode and running. If not Hot, then it is low on gas.

Feb 24, 2011 | Pace 18HPEWHEC Split System Air...

1 Answer

I have a Rheem Heat Pump and a White-Rogers Thermostat. Right now my heater will heat the room to the exact temperature I have it set to, but it never shuts off. It does not continue heating, so I can only...

Try checking the switch, you may need to have it replaced. Your heating system is still okey, but the
fan continues running even when switched off, Is this
what you mean? Then, have your switch checked, especially the electrical line going to the fan.

Jan 04, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Thermostat not firing central heating

the stat works using a bi metalic strip so that click you here is making a contact and telling the boiler to call for heating so if you getting no click you need a new room stat. Replace with same model and note the wiring most stats only use 2/3 wires depending on system

Dec 08, 2008 | Dayton Electric Heater

1 Answer

Not enought heat

I have the same heater and it works great in my bedroom (with a door). the room is about 12 x 14. For my living room and dining area I use 2 or 3 oscillating, ceramic, fan forced heaters spaced out.

As you say, logically...since heat rises, the heat comes off the top. Only 3 things that I can think of would make that heater not work: First, a factory defect (it doesn't heat period). Second, if you have it a room that is too large for that size heater. Third, if the room has no doors (such as a living room).

If you have a draft it can work to your advantage. By placing the heater in line with the draft it will actually accelerate the heat exchange process and distribute the heat faster for you.

Dec 11, 2007 | Heating & Cooling

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