Impulse DO4837R User Manual
Page 20
20
TROUBLESHOOTING
R
888 Porter Rd. Muskegon, MI 49441 Phone: 231.798.8888 Fax: 231.798.4960 www.structuralconcepts.com
Product is Drying Out
Check the relative humidity in the store.
Water on the Floor
Check that all of the hoses are connected.
Check that the drain trap is free of debris.
Excessive Fan Noise
Check that the case is aligned properly.
Check that nothing is obstructing the blade rotation.
Check that the fan shroud is properly secured.
System is not Operating
Confirm the utility power is on.
Check that the MAIN power switch is on.
Check that the unit is properly plugged in.
Check the circuit breaker box for tripped circuits.
Fans Not Working
Check that the MAIN power switch is on.
Determine if there is ice build up blocking the fan.
Case Lights Not Working
Check bulbs for proper installation and connection.
Check for burned out bulbs.
Clean dirt and dust from the bulbs to prevent flickering.
Condensing Unit Not
Operating.
LED dF flashing, Controller is in defrost mode (not an alarm).
Compressor is running in a normal condition.
Check that the power is turned on.
Review factory time settings on the CPC controller.