--- title: "Frymaster E39: time to change the filter pad" description: "What E39 means on Frymaster E39: time to change the filter pads, what to check before booking, and when it is not a failure at all." url: "https://commercialappliancerepair.center/error-codes/frymaster-e39/" --- # Frymaster E39: time to change the filter pad The FQ4000 counts hours of use on the filter pad and also watches how filtration performs. ## What E39 actually means. The FQ4000 counts hours of use on the filter pad and also watches how filtration performs. When the count reaches 25 hours, or when oil returns so slowly that the pad looks clogged, it logs E39 and prompts for a new pad. Frymaster requires a new pad or paper every day, and ignoring the prompt leads to slow returns and filtration errors. Frymaster commercial appliance display · also shown as CHANGE FILTER PAD What to do when E39 shows on the commercial appliance ### Kind of code Mode, not a failure Nothing on the unit has broken; the controller is reporting a state it chose or one somebody set. A defrost pauses cooling for a scheduled melt and shows a warmer air reading for a while, a combi asks for a delime or runs its clean cycle and locks the door until it ends, a dish machine or a laundry machine sits in energy save between busy periods, and a door-open reminder beeps after a long delivery. No part is needed: letting the cycle finish, or the key sequence in the manual, brings the unit back. ### Usually leads to No repair Wait until the oil in the filter pan has cooled enough to handle safely, wearing the heat-resistant gloves your kitchen uses. ### Shows up as Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display A commercial appliance error code appears as letters or numbers on a combi, fryer, reach-in controller, dish machine or laundry machine display, or as a flashing light or an alarm tone. ### Make Frymaster A Frymaster fryer is serviced cold: the visit waits until the oil has come down and the vat has been drained by the crew. ### Source Frymaster FilterQuick FQG30U easyTouch gas fryer manual with FQ4000 controller (error log codes, section 5.6) FQ4000 easyTouch touchscreen controller on FilterQuick fryers (FQG30U and related FilterQuick gas and electric models). The M3000 logs the same reminder as E21 FILTER PAD PROCEDURE ERROR. ## Before you book, in this order. Each step comes from Frymaster's own guidance for E39 on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Wait until the oil in the filter pan has cooled enough to handle safely, wearing the heat-resistant gloves your kitchen uses. 02 Pull the filter pan, replace the pad or paper with the rough side up, and make sure the screen, hold-down ring and O-rings are in place. 03 Push the pan fully back in until the controller no longer shows P, then confirm the prompt; if E39 returns with a fresh pad, book a visit. ### Cleared? The code is gone from the controller, the box pulls down to its set point and holds it, the vat or the cavity reaches temperature and recovers on schedule, the rinse hits its heat and the drum finishes its spin, all without a new part. If the same code comes back within a week, or during the next busy shift, mention it when you book. ### What not to do E39 is maintenance, not a breakdown of the fryer. If a new pad does not help and oil still returns very slowly, look at the pre-filter screen or at E42 for a clogged drain. ## What you may notice with it. The commercial appliance problem E39 tends to arrive with. Answer these at the commercial appliance before anyone is booked. [All problems](https://commercialappliancerepair.center/problems/) Before you call ### [Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display](https://commercialappliancerepair.center/problems/commercial-error-code/) [All 8 causes, cheapest first](https://commercialappliancerepair.center/problems/commercial-error-code/) Problem ### Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display 8 causes, cheapest first No repair indicated ## Nothing to repair. Nothing on the unit has broken; the controller is reporting a state it chose or one somebody set. A defrost pauses cooling for a scheduled melt and shows a warmer air reading for a while, a combi asks for a delime or runs its clean cycle and locks the door until it ends, a dish machine or a laundry machine sits in energy save between busy periods, and a door-open reminder beeps after a long delivery. No part is needed: letting the cycle finish, or the key sequence in the manual, brings the unit back. [How to read what your commercial appliance is telling you](https://commercialappliancerepair.center/problems/commercial-error-code/) ## Frymaster commercial appliances. A Frymaster fryer is serviced cold: the visit waits until the oil has come down and the vat has been drained by the crew. [Frymaster commercial appliance repair](https://commercialappliancerepair.center/brands/frymaster/) More Frymaster codes [E13](https://commercialappliancerepair.center/error-codes/frymaster-e13/) [E16](https://commercialappliancerepair.center/error-codes/frymaster-e16/) [E17](https://commercialappliancerepair.center/error-codes/frymaster-e17/) [E18](https://commercialappliancerepair.center/error-codes/frymaster-e18/) [E19](https://commercialappliancerepair.center/error-codes/frymaster-e19/) [E25](https://commercialappliancerepair.center/error-codes/frymaster-e25/) [E28](https://commercialappliancerepair.center/error-codes/frymaster-e28/) [E33](https://commercialappliancerepair.center/error-codes/frymaster-e33/) [E41](https://commercialappliancerepair.center/error-codes/frymaster-e41/) [E42](https://commercialappliancerepair.center/error-codes/frymaster-e42/) [E44](https://commercialappliancerepair.center/error-codes/frymaster-e44/) [E53](https://commercialappliancerepair.center/error-codes/frymaster-e53/) [All 15 Frymaster codes](https://commercialappliancerepair.center/error-codes/#codes-frymaster) Mode, not a failure on other makes [Alto-Shaam E100](https://commercialappliancerepair.center/error-codes/alto-shaam-e100/) [Beverage-Air dEF](https://commercialappliancerepair.center/error-codes/beverage-air-def/) [Cleveland SURECOOK light](https://commercialappliancerepair.center/error-codes/cleveland-surecook-light/) [Continental Refrigerator PG](https://commercialappliancerepair.center/error-codes/continental-refrigerator-pg/) [Delfield dEF](https://commercialappliancerepair.center/error-codes/delfield-def/) [Dexter PUSH](https://commercialappliancerepair.center/error-codes/dexter-push/) [Hatco Lo](https://commercialappliancerepair.center/error-codes/hatco-lo/) [Hobart 029](https://commercialappliancerepair.center/error-codes/hobart-029/) [All 29 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-mode) Frymaster builds this ### Commercial cooking equipment Fryers, griddles, charbroilers, restaurant ranges, convection and combi ovens, steamers, kettles, holding cabinets and toasters, on gas or electric, that make up the hot side of a kitchen line. ## In Frymaster's own words > 25-hour timer has expired or dirty filter [Frymaster FilterQuick FQG30U easyTouch gas fryer manual with FQ4000 controller (error log codes, section 5.6)](http://fm-xweb.frymaster.com/service/udocs/Manuals/8197521.pdf) [Frymaster FilterQuick FQG30U easyTouch gas fryer manual with FQ4000 controller (error log codes, section 5.6)](http://fm-xweb.frymaster.com/service/udocs/Manuals/8197521.pdf) [Frymaster Manual LOV M3000 controller operation manual, 02/2025 (E-log error codes)](http://fm-xweb.frymaster.com/service/udocs/Manuals/8196964.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. FQ4000 easyTouch touchscreen controller on FilterQuick fryers (FQG30U and related FilterQuick gas and electric models). The M3000 logs the same reminder as E21 FILTER PAD PROCEDURE ERROR. ## Frymaster E39 commercial appliance repair, where we come out. The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered. 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Wait until the oil in the filter pan has cooled enough to handle safely, wearing the heat-resistant gloves your kitchen uses. ### How often does a Frymaster FilterQuick need a new filter pad? Every day, or sooner if sediment rises above the hold-down ring. The 25-hour prompt is the controller's reminder when that has been skipped. ### Why does E39 come back the day after I changed the Frymaster pad? If the pad went in upside down or the pan was not fully seated, the fryer sees slow returns and assumes the pad is clogged. Check the rough side is up and the pan is all the way in. ### Can I ignore CHANGE FILTER PAD and keep frying on a Frymaster? The fryer will keep cooking, but Frymaster warns against ignoring the prompt. A clogged pad leads to incomplete filtration, errors and shorter oil life. --- **[Read on the site: Frymaster E39: time to change the filter pad](https://commercialappliancerepair.center/error-codes/frymaster-e39/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**