Master Bilt 80, BMG/TMG 27, 48, 74, 52 manual Service Instructions

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SERVICE INSTRUCTIONS

1.High head pressure and high back pressure:

A.Condenser coil clogged or restricted

B.Condenser fan motor defective.

C.Air discharge in rear of cabinet restricted.

2.Low back pressure and low head pressure:

A.Restriction in system.

B.Refrigerant undercharged.

C.Leak in system

3.Pressure normal – cabinet warm:

A.Coil blocked with frost (see #4).

B.Refrigerant undercharged.

C.Control set too warm.

4.Cabinet not cycling – coil blocked with frost:

A.Defective temperature controller.

B.Refrigerant overcharged.

C.Location too hot.

D.Condenser clogged.

E.Condenser fan motor defective.

5.Compressor starts and runs – but cycles on overload:

A.Low voltage

B.Relay defective.

C.Overload defective.

D.High head pressure (see #1).

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Contents LAE Controller Page Table of Contents Store Conditions IntroductionGround Required General Instructions PRE-INSTALLATION InstructionsInstallation Instructions Inspection for Shipping DamageElectrical Cabinet should be groundedGrill DoorsManual Defrost MASTER-BILT Electronic Refrigeration ControlHOW to Change the Setpoint Service Instructions Final Check List Temperature Sensors and FAN Motor ReplacementBMG/TMG-27 BMG/TMG-48 BMG/TMG-52 BMG/TMG-74 BMG/TMG-80 MASTER-BILT Part ListOwner Responsibility Sale and DisposalPage