Swamp cooler fan speed...?
Question:I'm new to swamp coolers, but I reeaaaally love mine, so I'm a bit concerned that yesterday, my low/high switch started operating the fan at the same (low) speed. It does this for both the "cool" and "vent" settings. It's a GE Lead-R-Line model. Any help is GREATLY appreciated.
Answers:
There are only two possibilities. Either the switch is bad or the motor is bad. In a 2 speed motor the "winding" is split. The neutral goes on one end. If power is hooked to the middle, it turns at low speed. If the power is hooked to the other end, it turns at hi speed. The motor winding could be shorted, or the switch may be failing to switch. All there is to it.You can check the switch by unplugging the unit, and physically switching the wires marked "hi" and "low" on the back of the switch. There are only 4 wires there, power in, pump, hi, & low. Now plug it back in. If it only runs at hi speed, then the switch is bad. If it still runs at low, then the motor is bad. Don't forget to put the wires back in the original position, or the switch will be reversed.
Good luck..
17 yrs Home Appliance repair . in 10 % humidity.
The fan motor is wired to run in one or more speeds. There is a relay that switches power from the low speed to the high speed. this relay may be defective, and not switching power to the high speed.
is it a new unit? if so warranty it out. if not there are a couple of possible obvious issues.
1. what is voltage of motor. if its more than a 120vac system you could be missing whats called a leg (one of the hot power lines) it could be broken/disconnected. if #2 aint the problem call a qualified electrician.
2. well maybe you should check this first since it may be the easiest. the switch. its a two speed switch. most are simple to replace usually 2-4 wires. ensure all power is off prior to any work .work safe...u wanna enjoy that cooler dont ya! if your unsure on how to...get a qualified electrician.
3. it could be the switch is working but the fan belt is loose and unable to get the squirl cage to spin at the desired speed. you may notice a slight squeel if its so. a simple change out...turn off power first...unplug.safety first...
i hope this dialed in some info for your starting point ...on diagnosing and fixing whats wrong..
gl
k
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