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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have a 20 ton unit in my fitness facitly it is not working

Customer Question

Hi i have a 20 ton unit in my fitness facitly it is not working and blinking between
errror messages
b E6 and A 00
Can you advise?
Submitted: 4 months ago.
Category: HVAC
Expert:  BillyHvac replied 4 months ago.

Hello,

do you have the model number ?

Customer: replied 4 months ago.
SCW105032
Customer: replied 4 months ago.
Hello????
Expert:  BillyHvac replied 4 months ago.

Thank you.

Are you controlling via Tracker, Tracer, BMS or stand alone?

Customer: replied 4 months ago.
I am in front of the unit, not sure what you mean
Expert:  BillyHvac replied 4 months ago.

These units are "not off the shelf".

They can be designed to be controlled by a control system, or on board Intellipak.

The model number tells me the nuts and bolts..but I do not know what is controlling it.

If you want to change the temp...how do you do it..or switch functions or set a schedule?

Customer: replied 4 months ago.
we can set it on the unit itself is has a digital board on it that we turn on and off and set temp
do you know what those error messages mean?
Expert:  BillyHvac replied 4 months ago.

If the error you are reading is on an Intellipak series control board I can tell you. If itis aftermarket I will need cross ref. Just a moment

Expert:  BillyHvac replied 4 months ago.

Ok,

It refers to a high head pressure fail/lockout.

Is unit totally down or fans running?

Customer: replied 4 months ago.
totally down
here is a picture
Expert:  BillyHvac replied 4 months ago.

did you already move to stop/reset and then locate back to auto local?

Customer: replied 4 months ago.
When I di it I get code A 04 (pre-fan), but then it goes back to A00 after 2 minutes
Expert:  BillyHvac replied 4 months ago.

The reset should clear the code and actually try to start the unit..then the unit would raise in pressure (running) then shut down.

You failure is not resetting. Do you have the plug in hand held?

Expert:  BillyHvac replied 4 months ago.

meaning the Trane hand held communication module

Customer: replied 4 months ago.
The system did clear the code and went to A04 (pre-fan) as if it was trying to reset and start again. But after a couple of minutes it couldn't and went to A00.
Customer: replied 4 months ago.
Where is the hand held communication module located?
Expert:  BillyHvac replied 4 months ago.

It would have been left on site for facilities...it is a diagnostic tool or a program on laptop that interfaces with the control you see. If there is not one then yu would need to call Trane for a system check as this is a proprietary program.

As you see by looking at the unit, it is not a simple piece of equipment. I will open this to the others for their thoughts

Customer: replied 4 months ago.
Well, we don;t have any software available for this unit.