--- product_id: 806100273 title: "Model 253 Fan Delay Timer, Time Delay Relay Adjustable 12-390 Second Time Off Delay Replacement for ICM253 Blower Fan Control Board" brand: "bipimifi" price: "R1476" currency: ZAR in_stock: true reviews_count: 3 category: "Bipimifi" url: https://www.desertcart.co.za/products/806100273-model-253-fan-delay-timer-time-delay-relay-adjustable-12 store_origin: ZA region: South Africa --- # 12-390s adjustable delay 1A rated contact current 18-30VAC voltage range Model 253 Fan Delay Timer, Time Delay Relay Adjustable 12-390 Second Time Off Delay Replacement for ICM253 Blower Fan Control Board **Brand:** bipimifi **Price:** R1476 **Availability:** ✅ In Stock ## Summary > ⏱️ Keep your cool longer — the smart delay every HVAC pro needs! ## Quick Answers - **What is this?** Model 253 Fan Delay Timer, Time Delay Relay Adjustable 12-390 Second Time Off Delay Replacement for ICM253 Blower Fan Control Board by bipimifi - **How much does it cost?** R1476 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/806100273-model-253-fan-delay-timer-time-delay-relay-adjustable-12) ## Best For - bipimifi enthusiasts ## Why This Product - Trusted bipimifi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Reset Function:** Auto-resets delay timer instantly if power is interrupted, preventing system errors. - • **Anti-Jitter Protection:** Built-in 1-second query delay stops false triggers from temperature fluctuations or interference. - • **Reliable Power Control:** Maintains continuous power during delay to ensure safe, glitch-free operation. - • **Precision Adjustable Delay:** Customize your fan’s off time from 12 to 390 seconds for optimal airflow and comfort. - • **Universal HVAC Compatibility:** Seamlessly integrates with furnaces, air processors, and fan motors for versatile use. ## Overview The Model 253 Fan Delay Timer is a versatile, adjustable time delay relay designed for HVAC systems, offering a 12 to 390-second off delay to extend fan operation post-cycle. Operating at 18-30VAC with a 1A contact rating, it enhances system efficiency by clearing residual air, features auto-reset on power loss, and includes anti-jitter protection for reliable, professional-grade performance. ## Description Buy Model 253 Fan Delay Timer, Time Delay Relay Adjustable 12-390 Second Time Off Delay Replacement for ICM253 Blower Fan Control Board: HVAC Controls - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Very poor instructions. - This delay on break timer was not easy for me to get figured out and installed. I am familiar with wiring and have worked several years in the air-condition industry. ( that was 20 years ago) I used a multi meter to figure out what I needed to hook up because the instructions were so small I couldn't see them clearly. The symbology on the timer was not the standard symbology I am used to using for relays and similar items. The price is good but I would look for a different timer with better instructions next time. Review: Very handy off delay (run on) for AC motors or whatever. - This is a nice compact unit. I use to keep my central AC units air handler fan running for an extra 60 seconds. This keeps my fan running, blowing air over the still cold coils after the compressor shuts off. This gives me an extra minute of cold air on EACH cycle after the compressor shuts down. I designed a unit similar to this back in the 80's that had an ON delay and OFF delay as well as zero crossing which, really saved a lot of power. This could be used for other off delays for all kinds of electrical applications. You could connect to a relay and control DC loads as well. The applications for this are mind blowing. The connectors are excellent and it just works as designed. ## Features - Model 253 fan delay timer offers an adjustable "delay-off" function, with a time range of 12 to 390 seconds. The time can be adjusted through the knob. This delay function enables the fan to continue running after the heating or cooling cycle ends to clear the residual air in the pipes, thereby improving the system's operational efficiency and indoor comfort. - Off delay timer relay must remain powered on before and throughout the delay period. If the power supply is interrupted, the load will immediately lose power, and the delay timing will automatically reset to zero to ensure the safe and reliable operation of the system. - When the activation contact re-closes during the delay period, the load remains powered on, and the delay timer is automatically reset and starts anew. Additionally, a 1-second "query delay" is provided, effectively preventing false actions caused by temperature regulator jitter or human interference. - The load should be energized immediately when the starting contact is closed. The delay starts only after the contact is disconnected and the load is turned off after the preset time is over, achieving precise post-blowing control. - The working voltage range is 18–30VAC (50/60Hz), and the rated current of the contacts is 1A. It is compatible with standard HVAC equipment, such as furnaces, air processors, and other fan motor applications. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0FXM4R1Z3 | | Best Sellers Rank | #537,017 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #698 in HVAC Controls | | Brand Name | BIPIMIFI | | Customer Reviews | 3.7 out of 5 stars 3 Reviews | | Included Components | control board and sensor | | Manufacturer | BIPIMIFI | | Manufacturer Part Number | Modle253 | ## Images ![Model 253 Fan Delay Timer, Time Delay Relay Adjustable 12-390 Second Time Off Delay Replacement for ICM253 Blower Fan Control Board - Image 1](https://m.media-amazon.com/images/I/715Ml-jRNuL.jpg) ## Customer Reviews ### ⭐⭐⭐ Very poor instructions. *by K***K on January 14, 2026* This delay on break timer was not easy for me to get figured out and installed. I am familiar with wiring and have worked several years in the air-condition industry. ( that was 20 years ago) I used a multi meter to figure out what I needed to hook up because the instructions were so small I couldn't see them clearly. The symbology on the timer was not the standard symbology I am used to using for relays and similar items. The price is good but I would look for a different timer with better instructions next time. ### ⭐⭐⭐⭐ Very handy off delay (run on) for AC motors or whatever. *by R***R on January 6, 2026* This is a nice compact unit. I use to keep my central AC units air handler fan running for an extra 60 seconds. This keeps my fan running, blowing air over the still cold coils after the compressor shuts off. This gives me an extra minute of cold air on EACH cycle after the compressor shuts down. I designed a unit similar to this back in the 80's that had an ON delay and OFF delay as well as zero crossing which, really saved a lot of power. This could be used for other off delays for all kinds of electrical applications. You could connect to a relay and control DC loads as well. The applications for this are mind blowing. The connectors are excellent and it just works as designed. ### ⭐⭐⭐⭐⭐ Excellant product *by J***S on December 4, 2025* Easy install if you understand basic air conditioning wiring. --- ## 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.co.za/products/806100273-model-253-fan-delay-timer-time-delay-relay-adjustable-12](https://www.desertcart.co.za/products/806100273-model-253-fan-delay-timer-time-delay-relay-adjustable-12) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-05-25*