Easy
15-30 minutes
This item has been sourced from the original manufacturer and is intended to be used with radiator heaters from DeLonghi. The timer fits into the control panel and is used to actuate the switch to set a specific time to turn the heater off. The timer is sold as an individual replacement part.
Timer 5210910021
OEM part for: DeLonghi
Part Number: 5210910021
$19.09
In Stock
Order within the next 6 hours and your part ships today! 
Compatibility
This part will fit the following 14 machines
DeLonghi
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Show More Compatible Models
This item works with the following types of products:
- Heater Parts
This part replaces obsolete part #: 5205000700, 5214002900
Customer Part Reviews ?
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New life for an old appliance
I was pleased that the part I needed was still available on your website. We have 3 DeLonghi portable oil filled radiant heaters that we use to augment the heat from our pellet stove. Each of these units have eventually had a timer failure...little plastic parts inside the timer break, and the whole machine is useless without a timer. So being able to source replacement parts is like a new lease on life for these heaters. Plus, its easy to swap out the timers, just 3 wires and you're back in action. Thank you, Dave S. Bend, Oregon
Guest -
March 31, 2023
Verified Purchase
Timer
Arrived quickly but I think my husband put it in wrong as it doesn’t keep time. I’m going to ask him to take out unit and put it back in. He put the other timer we purchased 7 yrs ago so I know he knows how to put it in. If not, we will return for another one. Thank you.
Guest -
March 3, 2023
Verified Purchase
Perfect fit, easy replacement
Had a noisy timer on my DeLonghi radiator, and this replacement was an exact fit. Comments related to the item provided all the clues I needed to do the job myself.
Guest -
December 24, 2021
Verified Purchase
Worked as expected
And thanks to previous buyers and this website for providing helpful how-to instructions. Timer is very quiet compared to the end days of the old one.
Guest -
November 11, 2020
Verified Purchase
Exactly as advertised
Parts in great shape and functioned exactly as planned!
Guest -
March 22, 2020
Verified Purchase
Perfect replacement part
Replaced a Burned out timer in a 10 year old DeLonghi oil heater.
Back to working like new!
Guest -
March 19, 2020
Verified Purchase
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Verified Purchase
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Timer quit
Jeff - December 21, 2023
Tool Type
Heater
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, My brain
Parts Used
Opened case, replaced timer, closed case.
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The Original Timer was broken and wouldn't turn heater on or off.
Nesvier - December 7, 2018
Tool Type
Heater
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Pliers, None.
Parts Used
Took out the old timer. And made sure to install the new one in the same way. I made sure to make marks while pulling the old timer out to make sure I got the wiring correct the first time.
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Old timer broken.
James - March 12, 2017
👍 0 of 1 people found this instruction helpful
Tool Type
Heater
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers
Parts Used
1. Removed shroud on side of heater. There is a hidden screw on the top that attaches the shroud from under one of the heater fins. I missed thus and ended up slightly cracking the shroud.
2. Removed wires from old timer and unscrewed old timer from shroud.
3. Attached new timer and wires.
4. Screwed shroud back on.
5. Plugged in heater and everything worked perfectly.
2. Removed wires from old timer and unscrewed old timer from shroud.
3. Attached new timer and wires.
4. Screwed shroud back on.
5. Plugged in heater and everything worked perfectly.
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Broken timer
Marcello - February 19, 2017
👍 0 of 1 people found this instruction helpful
Tool Type
Heater
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Parts Used
Just open the front end of the heater, disengaged the old timer, connect the new one, close the unit and test it. Everything went OK.
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Timer motor started making noise
Dave - May 26, 2016
👍 0 of 1 people found this instruction helpful
Tool Type
Heater
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
Remove front cover of oil radiant heater, remove cover on timer, remove timer from bracket, disconnect wires. Reverse steps.
$17 part saved $100 appliance.
$17 part saved $100 appliance.
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Rotary-type timer failed
Gregory - January 26, 2016
👍 0 of 1 people found this instruction helpful
Tool Type
Heater
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Parts Used
Removal and replacement of the panel in which the timer was located required patience as the top snap fitting was stubborn. Screws came out easily. Timer was easy to remove and replace (2 screws) as well as by carefully attaching wire connectors on corresponding terminals. Unit works as new.
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All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
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