Carrier model 42SD7C giving frequent Er 03 code on display. please help

Error code should have a description of Of a part or sensor next to the wiring diagram behind a panel on the unit what is it doing or not doing clean the coils change the filters check line and transformer voltage

What are you wanting to know? Kilowatt is a measurement of electrical energy.

faulty cercit board is what you have there sorry to say but it dose happen every so often get in touch with the poeple who you got it off and have the engineer look at it

Are you trying to run your cooling now? I'm guessing you have a carrier thermostat and that's where this is displaying. It's been awhile since I've came across one but to my vague reculiction that code indicates the outdoor sensor detects low ambient them temperatures which in turn will not allow your air conditioner to run which would make sense this time of year. If you want to run cooling in below 60 degrees temps you must add a "low ambient kit" this shuts the fan down outside to build up higher head pressure without doing this you will just ruin your ac but in your case it won't let you. Google up your Tstats model number and codes if that's not your situation.

Hi Trish, thank you for your inquiry! Typically error code E03 indicates that there is a failure with either the wash motor or motor hall sensor. I suggest checking for suds in the tub and siphoning. A further diagnoses is recommended to have a professional check the wiring between motor and main control board since either part could need replacing.

carrier model 42SD7C giving ER03 .what is solution

REPLACE INDOOR COIL SENSOR LOCATED AT COOLING COIL "U" BEND.

Hello and sorry to read about your problem.

First, their is no secret code to unlock your phone. The carrier has the ability to unlock your phone. But it must be that carriers phone. you need to contact the carrier, that owns your phone. I far as your private security code PUK,
Example: Phone was on AT&T and you want on T-Mobile..
AT&T has to give you the unlock code.
In addition to that, their is another code which allows you to change carriers, again you must contact the carrier...
NO SECRET CODES FOLKS. Their are online service's that you can pay for a PUK code.

Now i tried to help you.Please help me, and rate/vote this response. Thanks
wer
rwe
rw
rw
er

I gave up and called a local HVAC business. This thermostat is discontinued and a new one will be purchased and installed.