GE JT3000 single / GE Profile PT7550 double 30-inch electric wall oven: quick sheet

Covers: GE JT3000 30-inch built-in single wall ovens (JT3000SF/DF/EH and later suffixes such as JT3000SFSS stainless, JT3000DFWW white, JT3000DFBB black; the newer JTS3000 is the smart sibling) and GE Profile PT7550 30-inch double wall ovens with convection (PT7550SFSS, PT7550DFWW/BB, PT7550EH, PT7550BLTS black stainless; parts catalogs show revision digits such as PT7550SF9SS). Approx. 2010 onward. Confirm the full model/serial on the label (door frame or trim) before ordering.

Cross-checkedBrands: GE, GE Profile8 components

Two of GE's most-installed wall ovens. The JT3000 is a non-convection 5.0 cu. ft. single oven on a 20 A, 240 V circuit with self-clean (later versions add steam clean). The PT7550 stacks two 5.0 cu. ft. ovens with convection in the upper (or both, per version) on a 40 A circuit, about 7.6 kW at 240 V. Field failures are the GE pattern: bake/broil elements, sensor, door lock (F9 family), cooling fan problems that mimic lock faults, and touch-panel failures.

Safety first

240 V hardwired: breaker off and verify before pulling the oven.
Wall ovens are heavy; double ovens need two people or a lift; remove doors to lighten.
Never bypass a thermal cutoff.

How it works

Supply: 240/208 V hardwired through a conduit to a junction box; JT3000 on a 20 A circuit, PT7550 on 40 A (GE quick specs and a retailer agree on 7.6 kW / 5.7 kW).

Each oven has its own sensor, bake element (hidden on newer versions, ten-pass on JT3000 per GE) and broil element (eight-pass on JT3000). The control cycles the elements to hold temperature; PT7550 adds a convection element and fan.

Self-clean: the control drives a motorized door lock, heats the cavity very hot and runs the cooling fan; if the control loses the lock-switch signal or overheats it posts an F9-family code. A cooling fan that fails can let the control area overheat and cut out during long hot bakes; one owner's F9 at 400 °F turned out to be the cooling fan, not the lock.

Double ovens: both cavities share one control and one cooling system; a code may name the upper or lower oven (on PT7550 versions some codes are three-digit, e.g. one owner report of F97 tied to the lower cooling fan).

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Official manufacturer documentation

Always confirm values against the tech sheet for the exact model.

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work. © 2026 OnCall Tech. Original content; not a reproduction of any manufacturer document.Generic part photos (not of this brand): Large stainless refrigerator set flush between kitchen cabinets by Alex Qian, Pexels License

Diagnostic guides for this appliance

Guide · Range / Oven

Electric range trips the breaker or blows a fuse

Use the timing of the trip to split the problem. A trip at power-up, with every control off, points to the supply cord, terminal block, internal wiring or the breaker itself. A trip only when one element or mode is turned on points to that element (usually shorted to its sheath) or its switch and wiring. Rule out a weak or undersized breaker last, after the range itself tests clean.

8 steps ~60 minmoderate

Guide · Range / Oven

Electric range partly works: display on, oven or big elements won't heat

An electric range runs its electronics and lights on 120 V (one hot leg to neutral) but heats with 240 V across both legs. If one leg is lost, the range looks alive but cannot heat properly. Typical causes are half of the double-pole breaker tripped or failed, a burned terminal block or cord connection, or a damaged receptacle. A building on 208 V will heat, just more slowly.

7 steps ~45 minmoderate

Guide · Range / Oven

Oven keeps heating when turned off or overheats past setpoint

This is a fire hazard: turn the breaker off first, then diagnose. On electronic controls the usual cause is a relay on the control board whose contacts have welded closed. On dial ovens it is a stuck thermostat or selector contact. Less often a shorted sensor or harness is to blame. On gas ovens, a burner that won't shut off is a gas-valve problem and goes to a licensed gas technician.

7 steps ~60 minadvanced

Other ranges & ovens manuals

Manual · Range / Oven

GE JGBS66 / JGB735 30-inch freestanding gas range: quick sheet

GE 30-inch freestanding gas ranges with electronic touch oven control and 120 V supply: JGBS66 (and the lower JGBS60/JGBS61 family) with an under-oven broiler drawer and steam clean, and JGB735 (plus the JGB635/JGB645/JGB660 family) with an in-oven broil burner and self-clean. JGB735 adds a rear convection fan and No Preheat Air Fry. Finish/revision suffixes vary (SS, BB, WW, ES, DS and revision digits); confirm features against the rating label. Electrical and ignition side only: every gas-carrying part is blocked.

10 components7 common failuresGE

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Whirlpool WFG505M0B / WFG525S0J 30-inch freestanding gas range: quick sheet

Whirlpool 30-inch freestanding gas ranges with electronic touch oven control on the backguard and 120 V supply: WFG505M0B (5.1 cu. ft., under-oven broiler drawer, manual clean; revisions such as BS0/BS1/BS2, BW, BB and the later WFG505M0M) and WFG525S0J (5.0 cu. ft., in-oven top broil, self-clean; suffixes such as JS, JB, JW, JT, JV, JZ). Siblings WFG320 and WFG515 are built on similar chassis but check the ignition type per model (see overview). Electrical and ignition side only: every gas-carrying part is blocked.

9 components6 common failuresWhirlpool

Manual · Range / Oven

Frigidaire FCRG3052A and Gallery FGGF3036T/FGGF3059 30-inch gas ranges (electrical and ignition side): quick sheet

Frigidaire 30-inch freestanding gas ranges: FCRG3052A (AS/AB/AW, later FCRG3052B revisions; manual clean, no self-clean, storage drawer) and Gallery FGGF3036T (self-clean plus steam clean, convection fan) and FGGF3059T (Gallery, True Convection, self-clean plus steam clean). Electrical, ignition and control side only; every gas-carrying part is blocked. All listed models are discontinued and were sold roughly 2015-2021; match the full model and suffix on the rating plate (under the cooktop or on the storage drawer frame) before ordering parts.

10 components8 common failuresFrigidaire