Carrier 09BY006-024 dimensions Troubleshooting, Problem Potential Cause Solution

TROUBLESHOOTING

See Table 6 for problems and possible solutions.

Table 6 Ð Troubleshooting

PROBLEM		POTENTIAL CAUSE		SOLUTION
	1.	Fan belts are slipping or broken.	1.	Check and replace belts as necessary.
Unit is tripping on	2.	Fan is not delivering adequate air for condenser.	2.	Check air¯ow (see Table 2)*.
	3.	Low-ambient damper is not functioning correctly	3.	Check damper operation and adjust as required.
high-pressure switch		(if equipped).
or high discharge	4.	Dirty coil or plugged or restricted air ®lter and/or	4.	Check and clean coil, ®lter, and louver as required.
pressure is noted.		louvers.
	5.	Service valve(s) is closed.	5.	Open valve(s) and check for restrictions in
				refrigerant lines.
Compressor or	1.	Dirty coil or plugged or restricted air ®lter and/or	1.	Check and clean coil, ®lter, and louver as required.
		louvers.
evaporator is
	2.	Air¯ow is not adequate.	2.	Check air¯ow and determine if proper subcooling
losing capacity.
				is provided.
Unit is noisy.	1.	Air¯ow is turned too high.	1.	Slow down motor and check discharge pressure.
	2.	Belt and pulley are not properly aligned.	2.	Check and adjust alignment.
	3.	Proper vibration isolation has not been applied.	3.	Isolate unit properly.
Water drips from	1.	Rain water drain not functioning properly.	1.	Clean drain and check drain operation.
the unit.	2.	Unit is not insulated to prevent condensation.	2.	Insulate unit as required.
Fan motor trips	Air¯ow is set too high for motor (motor amps ex-		Slow motor down and check discharge
on internal			pressure.
	ceed nameplate value).
protection.

*Air¯ow should be within the range shown in Table 2, and should also be as close as possible to nominal air¯ow shown in Table 2 for optimum performance.

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