Pro TJ90RO41 Compressor Start Relay And Overload (Combination Start Device) OEM Part

Product Details

Genuine Pro part.

Cross Reference Information

Part Number TJ90RO41 replaces AP4503032, 21310, AP92, IC13, RO41.

Description

This is a combined start relay and overload protector for a refrigeration compressor. It helps the compressor start reliably and interrupts power under excessive heat/current to protect the motor—supporting consistent, dependable cooling performance. What it does

• Engages the compressor's start winding during startup, then disengages when the motor reaches speed
• Monitors motor current/temperature and opens the circuit on overload to prevent damage
• Common symptoms: not cooling or warming temps, compressor won't start, repetitive clicking/humming from the compressor area, intermittent cooling

What's included

• Includes 1 relay/overload combination start device

Install notes

• Disconnect power before service and allow components to cool
• Access the compressor compartment; note wire locations and the C-R-S terminal layout
• Remove the old start device, transfer wiring exactly, and seat the new device fully on the compressor terminals
• Reinstall any covers/panels; restore power and allow up to 24 hours for temperatures to stabilize