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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have a Honeywell thermostat -1778EF-05 and the A/C is cycling

Customer Question

I have a Honeywell thermostat 69-1778EF-05 and the A/C is cycling a lot. It come on for a few minutes, goes off, and then comes back on in about 5 to 10 munites, did this last summer also. A/C serviced this year.
JA: I'll do all I can to help. Tell me a bit more about what's going on so we can help you best.
Customer: The a/c cycles off and then turns back on at same temp in a few short minutes so the a/a goes off and on at the same temp
JA: Is there anything else the HVAC Technician should be aware of?
Customer: Nothing I know of.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the HVAC Technician about your situation and then connect you two.
Submitted: 5 months ago.
Category: HVAC
Expert:  Gaztech replied 5 months ago.
Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue.If my initial response doesn’t answer your question then let me know and we can continue our conversation.NOTE: I can only get paid for assisting you if you click FINISHED and RATE ANSWER after you are satisfied with answer.Are you ready?
Customer: replied 5 months ago.
Expert:  Gaztech replied 5 months ago.
Hello, what is make and model of your ac unit outside?
Customer: replied 5 months ago.
it is a trane unit 5 ton, not sure of model number
Customer: replied 5 months ago.
A/C outside installed in 2009 and thermostate changes out in 2012. before change out cycle was more typcail. This problems happems with ehat or a/c on
Expert:  Gaztech replied 5 months ago.
The model is very important for me
Customer: replied 5 months ago.
ok will go check and be back shortly, about 5 minutes.
Expert:  Gaztech replied 5 months ago.
Customer: replied 5 months ago.
M/N 13ACD-060-230-6
S/N 1991J08170on side numbers 101590-01 and 044762
Customer: replied 5 months ago.
S/N wroing is 1911J08170
Expert:  Gaztech replied 5 months ago.
That model shows it is not a TRane but a Armstrong or lennox
Customer: replied 5 months ago.
I did not see a manufacturer name on the unit.
Expert:  Gaztech replied 5 months ago.
Expert:  Gaztech replied 5 months ago.
Here is the manual for that unit, refer page 15 figure 12 need to know if your unit has the optional low and high pressure switch

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