Question about Lasko 5540 Ceramic Compact Heater

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Fan on, temp switch up 3 dots,fan only runs briefly, after short rest, temp switch up repeats short run. Lasko model 5429

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The thermostat is faulty. To test it open the unit and check its switch and replace if necessary. BTW for a replacement thermostat look at repair stores - they might have spares from dismembered units; parts from this unit aren't sold to customers. Sending it to be repaired it's not an option - it will be cheaper to just buy a new one.

Posted on Sep 05, 2010

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Posted on Jan 02, 2017

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Jun 05, 2016 | Lasko Dryers

1 Answer

Continous cutting of fan even after changing alternator and related purlins. So what is the problem?


Check these parts........... First check the TEMPERATURE/RADiATOR FAN SWiTCH, it is connected on ur RADiATOR, w/ 2 wires connected to it, at certain temperature the switch turns ON ur FAN MOTOR, by disconnecting it and JUMP/SHORT the 2 wires FAN MOTOR should run, even when u just turn on the ignition! If the FaN runs, u got temp switch prob and needs to replace, If the fan didn't run when u shorted the wire in the switch. Check the RELAY, located in the ENGiNE FUSE box, pull out the relay and replace it w/ another relay, while ur 2 wires in the temp switch is on and ur ignition is in the ON position, when the relay clicks and the fan runs, u have a GOOD relay, if not u have to replace the RELAY! Hope that explains everything! Taah!

Nov 15, 2010 | 1994 Mazda 323

1 Answer

With my thermostat on auto and on heat, and the furnace turns on, the fan will not turn on with it. If I switch the fan to on it will run after I repeat back and forth from auto to fan on several times...


Well, here is the deal: unless you rewired from two wire to multiple (usually 4 to 10 wires) wires, the fan cannot be controlled from the thermostat, even though the thermostat indicates that it can > it is a physical wiring and fan administration issue.

Unless you have a newer furnace, the fan is controlled by plenum temp. Works like this: burner turns on, no fan until the plenum temp reaches set temp,....then burner off, and fan keeps running until pelnum temp drops, and often the fan may kick on a few more times as this temp depletes.

Oct 03, 2010 | Honeywell Electronic Programmable...

1 Answer

Fan only runs briefly after short rest repeats short run


Your proplem could be caused by poor air flow. Make sure all the screens on the unit are clean and free of obstrutions. Also you leave at least 4inches of free space all around the unit.

Sep 05, 2010 | Lasko 5540 Ceramic Compact Heater

1 Answer

I have a few box fans that after excessive air temperature they shut down and don't restart. Any idea what the problem could be?


Thats what they should do.If they get hotter they can burn. They have a temp switch built in. Then when they cool off they run again.

Nov 09, 2009 | Lasko 3520 20-Inch Cyclone Fan

1 Answer

1994 Saab 900 S convertible running hot


You don't say whether your electric fans both work...

First, check fuses #25 and #6 (both 30 amp)

There is a fan thermoswitch is on the left side of the rad. Turn the ignition on, and after pulling back the boot, short across the two terminals with a screwdriver.

If the fan runs, fan and wiring are both good, but thermoswitch might be faulty.

If fan only runs when thermoswitch is shorted like this, switch needs to be replaced (I strongly recommend that you get the low temp switch to prevent overheating - your temp gauge will not go over the middle position even on the hottest days; also get a low temp thermostat,and ALWAYS get a Saab stat, not an after market one! The SAAB stats are three position, and most after market ones aren't)

if the fan doesn't run when switch is shorted, check for voltage between green wire and ground at the switch.

Voltage indicates faulty fan, if no voltage then check the fan relay J in the main fuse box for the A/C rad fan, and also check relay G - it's for the rad fan.

Hope this helps!

Saabreur

Jun 22, 2009 | 1994 Saab 9 3

1 Answer

Infocus in26 fan runs continually


Hello,
The fan does run continuously on this projector however it should be running very very slow when the projector has completed it's lamp cool down routine.
The reason for this is that a portion of the switching power supply remains energized (running) when the projector is at rest. But as I mentioned it should run very slow in this state. If it remains running full blast then most likely the fan speed control chip is shorted which can cause fail 2 ways, either the fan 1. runs full
speed or 2. remains stalled (then the projector will go over-temp and shut itself down) I hope this answers you question.

Cheers

Dec 18, 2008 | InFocus IN26 Multimedia Projector

1 Answer

FFA60 Hotpoint fridge/freezer Red warning light


if i read the english right, the compressor runs but the freezer fan only runs for a short time. no fan then no cooling. there is a fan stat so that the fan only runs when the evap is down to temp. this may be faulty. also on some hotpoint, the fan switches off when door opened. check door switch operating ok. this may also explain problem with fridge lamp

Mar 11, 2007 | Hotpoint FFA60 Bottom Freezer Refrigerator

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