---
product_id: 11160121
title: "ICM Controls ICM253 Adjustable Fan Delay Timer | Post-Purge Off Delay Control | 12–390 Second Adjustable Delay | 18–30 VAC | UL Recognized HVAC Blower Fan Control Board for Efficiency & Comfort"
brand: "icm controls"
price: "888 DH"
currency: MAD
in_stock: true
reviews_count: 6
url: https://www.desertcart.ma/products/11160121-icm-controls-icm253-adjustable-fan-delay-timer-post-purge-off
store_origin: MA
region: Morocco
---

# 12-390 sec delay UL 873 certified Compact design ICM Controls ICM253 Adjustable Fan Delay Timer | Post-Purge Off Delay Control | 12–390 Second Adjustable Delay | 18–30 VAC | UL Recognized HVAC Blower Fan Control Board for Efficiency & Comfort

**Brand:** icm controls
**Price:** 888 DH
**Availability:** ✅ In Stock

## Summary

> 💨 Breathe Easy with Precision Timing!

## Quick Answers

- **What is this?** ICM Controls ICM253 Adjustable Fan Delay Timer | Post-Purge Off Delay Control | 12–390 Second Adjustable Delay | 18–30 VAC | UL Recognized HVAC Blower Fan Control Board for Efficiency & Comfort by icm controls
- **How much does it cost?** 888 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/11160121-icm-controls-icm253-adjustable-fan-delay-timer-post-purge-off)

## Best For

- icm controls enthusiasts

## Why This Product

- Trusted icm controls brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Installation:** User-friendly design makes setup a breeze, saving you time and effort.
- • **Durable & Reliable:** Built to last with high-quality materials, ensuring long-term functionality.
- • **Compact & Lightweight:** Designed to fit seamlessly into your HVAC system without adding bulk.
- • **Optimize Your Airflow:** Experience efficient post-purge air management with adjustable off delay.
- • **Smart Delay Technology:** Interrogation delay prevents nuisance trips, ensuring reliable performance.

## Overview

The ICM Controls ICM253 Fan Delay Timer is a UL 873 recognized device designed for compressor applications, featuring an adjustable off delay of 12-390 seconds to effectively purge ducts of residual air. Its smart interrogation delay technology minimizes nuisance trips, making it a reliable choice for HVAC systems. Compact and lightweight, this timer is easy to install and built for durability, ensuring optimal performance in your heating and cooling cycles.

## Description

Post-purge fan delay timer with adjustable 12-390-second time delay.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Multicolor |
| Brand | ICM Controls |
| Material | Plastic Or Resin |
| Product Dimensions | 6"D x 6"W x 6"H |
| UPC | 800442000688 |
| Global Trade Identification Number | 00800442000688 |
| Manufacturer | ICM Controls |
| Item Weight | 2.39 ounces |
| ASIN | B000E24YQA |
| Item model number | ICM253 |
| Batteries | 1 Unknown batteries required. |
| Is Discontinued By Manufacturer | No |
| Date First Available | August 18, 2017 |

## Product Details

- **Color:** Multicolor
- **Brand:** ICM Controls
- **Material:** Plastic Or Resin
- **Product Dimensions:** 6"D x 6"W x 6"H
- **UPC:** 800442000688

## Images

![ICM Controls ICM253 Adjustable Fan Delay Timer | Post-Purge Off Delay Control | 12–390 Second Adjustable Delay | 18–30 VAC | UL Recognized HVAC Blower Fan Control Board for Efficiency & Comfort - Image 1](https://m.media-amazon.com/images/I/51tW03m9iiL.jpg)

## Questions & Answers

**Q: Does it turns on immediately and stays on until break plus the delay time requested?**
A: Hello.This relay has a post purge manually adjustable delay from 12 to 390 second.Let us know if you have any other questions.Customer Support Team of PartzStop.

**Q: If trigger power is restored during the delay, will it still cut off when the delay time is reached?**
A: The question is a bit ambiguous with out a wiring diagram.  The normal application is to extend the on signal.  This is a control relay, it does not power the fan directly.  The unit extends power on "control" by up to 5 minutes.  If the trigger is off due to power outage the relay is off too. The timer starts over when power on is restored and the trigger is high.

**Q: would this work on dc?**
A: I am not sure if it work with DC. There could be internal circuits that could get damaged with direct current.
You may want to submit your question in their website. I believe it is www dot icmcontrols dot com

**Q: From the 12 second setting how many seconds are added with each adjustment**
A: Considering the graduation, does not look like it is linear! If I have to guess, it maybe 40 seconds each marking after the 12. After number 12, there are four more divisions then number 200 then again another four and last number is 390. Go figure!!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Purging Conditioned Air from the System
*by R***N on July 7, 2025*

It's a very useful device. It allows me to make the fan on the central air continue running for a short while after the compressor ends its cycle; otherwise, they both stop when the thermostat setpoint is reached. The range for the delay is anywhere from 12 to 390 seconds. Anecdotally, I have already seemed to have found that it reduces the loss of cool temperature into the encapsulated crawl space. Now I just need to determine how long to run to purge the conditioned air through the system.

### ⭐⭐⭐⭐⭐ Hvac Blower Motor relay timer
*by J***K on February 14, 2024*

Delay on break 24v relay timer . Installed on signal side of Hvac blower relay to trick the relay into thinking the Wall Thermostat was still outputting “ Blower ON “ signal keeping the blower running after the Thermostat has already turned off the blower relayBasically turns your regular Blower Relay into a time delayed solid state relay . They call it delay on break ( so when Wall thermostat switches off this timer sees the “ break “ & then applies constant voltage back to the blower relay mimicking “ ON “ signal from Wall thermostat )Follow downloadable manual instruction PDF for this model delay timer ( follow diagram exactly )If wired correctly your splicing it into the 24v Transformer in the Hvac Air handler so it can mimic the 24v signal from the Wall Thermostat when turned off ( for the exact time you’ve got the delay set on with the knob )Used this to leave the Blower running 30 seconds after the unit is signaled off from Thermostat so the Heat Elements could cool off before blower turns offThere are Wall Thermostats out there like Honeywell Pro WiFi @ Zwave that have this feature under “ Advanced Setup “ menu , but there 5x’s the price of this

### ⭐⭐⭐⭐ Works Well, But Read the Instructions!
*by M***5 on February 2, 2025*

I installed the ICM253 Fan Delay Timer to help with short cycling on my HVAC system, and it does exactly what it’s supposed to. The delay function helps the fan run a bit longer after shutdown, improving efficiency and airflow.Installation was fairly straightforward, but I’d recommend double-checking the wiring instructions—it’s easy to mix up connections if you’re not careful. Once set up, though, it works flawlessly.Overall, a solid upgrade for HVAC efficiency, just take your time with installation!

## Frequently Bought Together

- ICM Controls ICM253 Fan Delay Timer, 12-390 Seconds Adjustable Off Delay
- Supco 90340 General Purpose Switching Relay, 24 V Coil Voltage, Double Pole Double Throw Contacts

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ma/products/11160121-icm-controls-icm253-adjustable-fan-delay-timer-post-purge-off](https://www.desertcart.ma/products/11160121-icm-controls-icm253-adjustable-fan-delay-timer-post-purge-off)

---

*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-02-26*