Guest Oakey Posted January 31, 2017 Share Posted January 31, 2017 The blower on my 1.6 Mk 4 cabbie works but doesnt blow warm/hot air out and temp guage stays on min. Top hose gets nice and warm as it should. Can someone suggest a list of things to check? (I have already had check thermostat suggested...) thanks in advance Quote Link to comment Share on other sites More sharing options...
jinks Posted January 31, 2017 Share Posted January 31, 2017 is the bottom hose getting hot also feel top and bottom of the rad might be blocked Quote Link to comment Share on other sites More sharing options...
jinks Posted January 31, 2017 Share Posted January 31, 2017 also heater matrix u/s air in system check if water is circulating Quote Link to comment Share on other sites More sharing options...
Nick Barnes Posted January 31, 2017 Share Posted January 31, 2017 maybe time to Flush the system completely ? any idea when this was last done ? This will clear any crap out and when you refill it, it should get rid of any air locks Quote Link to comment Share on other sites More sharing options...
Ian71 Posted February 1, 2017 Share Posted February 1, 2017 Make sure your coolant level is up to the max on the bottle. Quote Link to comment Share on other sites More sharing options...
Paul Grainger Posted February 4, 2017 Share Posted February 4, 2017 Another thing to check is that the cable from The temperature control knob is actually moving The flap on The heater box. I seem to remember these becoming uncliped. From memory it is on The lower part of The heater box near The clutch pedal and people with big feet knock them off! The gauge fault could just be a faulty sensor. Quote Link to comment Share on other sites More sharing options...
Guest Oakey Posted February 20, 2017 Share Posted February 20, 2017 Ok. So I fitted a new thermostat (tested old one and it was locked open) and now I'm getting a little bit of heat into the cab. But now I'm getting overheating issues as the rad fan isn't kicking in. I've tested the thermal switch on the thermostat housing, bypassing it by running a wire out of and back into the connector. The fan still didn't work. So else should I check? I think I've located the fuse (30amp) and relay, fuse looks ok but obviously can't tell if relay is working. Any suggestions? Quote Link to comment Share on other sites More sharing options...
Paul Grainger Posted February 21, 2017 Share Posted February 21, 2017 There is no relay?!? The ignition needs to be on to make the fan run when shorting the wires. If this does not work you could have a faulty motor. Wire the motor straight to the battery to see if it works. Quote Link to comment Share on other sites More sharing options...
Guest Oakey Posted February 22, 2017 Share Posted February 22, 2017 Oh, thought there was....(!!) Ignition was on but still no luck. I'll try wiring fan straight to battery. Thanks Paul Quote Link to comment Share on other sites More sharing options...
Himanshu Posted June 1, 2018 Share Posted June 1, 2018 Check temperature sender or wire break. Quote Link to comment Share on other sites More sharing options...
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