01-0843 Nordyne OEM sequencer 2 timings 4 switches H1-110 C1-110 

This is a replacement sequencer for the original Part # 85267277952

Our best-selling 2 timing 4 switch sequencer!! Click to watch how a sequencer works ----->   https://youtu.be/5YjL8eR5VJ0

The 01‑0843 Nordyne OEM Sequencer is a genuine replacement heating control used in many Nordyne, Intertherm, and Miller electric furnaces. This sequencer features two timing circuits and four switches, providing staged activation of heat strips to prevent electrical overload and ensure smooth system operation.

With timing ranges of H1‑110 and C1‑110, this sequencer delivers dependable ON/OFF delay performance that matches original factory specifications. It is a direct replacement for Nordyne part 85267277952, making it ideal for service repairs, maintenance, and restoring proper heat sequencing in manufactured housing HVAC systems.

Key Features

• OEM Nordyne replacement sequencer

• 2 timing circuits / 4 switches

• Timing ranges: H1‑110 and C1‑110

• Ensures proper staging of electric heat strips

• Prevents breaker trips and overheating

• Direct replacement for 85267277952

• Compatible with Nordyne, Intertherm, and Miller electric furnaces

The sequencer consists of two even-height towers on one plate. 2 timings and 4 switches. The timings will come on (get hot) in 1-110 seconds (H1-110) and shut off (get cold) in 1-110 seconds (C1-110). The purpose of the timings is to turn on the heating elements in a sequence as to prevent a huge power surge which may blow a breaker.

If your electric furnace isn't putting out enough heat, it may be that the switches in your old sequencer aren't closing. Or if it feels like an element is not shutting off, a switch in your old sequencer may be stuck closed. Same can be said about the blower motor. If the motor doesn't turn on or shut off, it may be an issue with the first switch (M1-M2). Be sure to doublecheck the wiring diagram of your furnace as some models use the sequencer differently.

On a typical electric furnace, the blower motor is hooked to terminals M1 & M2 (perhaps referred to as H1 & H2 on other various sequencers). The heating elements are then hooked to M3-M4 and M5-M6 and M7-M8, (25 Amp Load) do not over power by connecting more than 1 element per switch 

24V feeds the bottom (gold) terminals of the sequencer. Welded jumper bars connect the 24V from one tower to the next. If your application does not use these jumpers, simply twist them off with a pliers.

Not all the terminals of the sequencer may be used in your application. In some cases, you may need extra terminals. If that happens, included are extra terminal adapters to convert one terminal to two.

All our parts have a 1-year exchange warranty with us (no dealing with the manufacturer), so buy with confidence. We generally ship replacement parts the day you contact us.