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I have a century lasar spa motor 177803, I bought it to put into my small hot tub, what heater/controls are compatiable with this pump?

I am looking to put a 115 system into my tub. I don't have the money to wire 220 to my tub. I have 220 heater & pump that should work... but it would be at least $600 to get it wired. I have and old 115 pump/heater combo but the bearings seemed to have seized. Any help?

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  • rayrezek
    rayrezek Oct 26, 2012

    Okay, I found a Century Lasar pool/spa 177803, I can get it for $50, but where do I find a heater that is compatiable with it?

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  • 111 Answers

Hi,
If you are looking for a stand alone heater here are a few options:
Brett Aqualine HT-1
Therm Products 5.5kW
The above heaters only have Thermostat's for temperature control. They also include hi limit & pressure switches, those two are safety devices to prevent an over heat.
OR
A Hydro-Quip CS500 system, can plug into a regular outlet. It also comes with a time clock & air buttons to allow motor control.

Posted on Oct 30, 2012

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Posted on Jan 02, 2017

tbreeze47
  • 3083 Answers

SOURCE: We have a AO Smith

Here is a replacement motor:
http://www.spapumpsandmore.com/SearchResults.asp?Search=+177803-02
You might have to sign up for shipment, but it looks like they have them.
Good luck, and hope this gets you going again.

Posted on Sep 12, 2010

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A Century pool spa motor part # 7/177803/02. I have a black, white, red wires. Can someone please tell me how to hook it up to the motor. than you very much


Is this a two speed motor?
motor for a spa pump?
or, are you trying to hook up a capacitor to the motor?
your question is very vague!
if you have a pump connection cord, with the colors you mentioned, did you purposely leave out the fact that there is a Green wire as well?
please be more specific as to the assistance you are seeking.
but if we're intending us to play a guessing game... then if had those colors PLUS a green wire, that would be power supply wires for a TWO speed pump motor, commonly found on SPA pumps.
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There will be a decal on the side of the motor telling you which post will be what. If not, the wire up posts will have a letter designations right next to them...
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I have century lasar pool/spa motor bn50 115volts 16.4/4.4amps 1.5hp 2spd runs on lowspeed but will not run on high speed can it be repaired or what?


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Heater


Water heater can be added to any incoming water line, either on hot or cold.
http://waterheatertimer.org/How-to-install-under-counter-water-heater.html
Under-counter water heater located near tub will supply hot water just like ordinary household water heater. But it will not reheat water that circulates inside the spa tub.
Otherwise, a spa heater is made with electric element that can work with 120V or 240V. Water from tub circulates through tank that holds element. Element must be fully immersed in water.
To retrofit spa tub with this heater would require cutting water line near pump, running both ends of water line into tank with element.
Then of course you would need to retrofit adjustable thermostat to control when element is on. And integrate element operation into air control switch at tub that can override thermostat so element is not heating when tub is not in use.
Unless there is a pre-packaged kit to retrofit heater, I think adding heater would be difficult.

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My pool motor does not turn when I turn it on it just makes a humming sound. Can it be fixed ? Century LASAR Pool/Spa motor model # SD-20-2N11CD


Probably the capacitor is bad.
It can be replaced.
Do not let motor hum, because motor is getting hot and will burn up pretty quick, or trip the reset.
Call pool company.
Motor resources:
http://waterheatertimer.org/Color-codewire.html#motor

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